CVE-2024-30043
published 2024-05-14CVE-2024-30043: Microsoft SharePoint Server Information Disclosure Vulnerability
PriorityP356high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
EPSS
54.66%
98.9th percentile
Microsoft SharePoint Server Information Disclosure Vulnerability
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | microsoft_sharepoint_enterprise_server_2016 | >= 16.0.0 < 16.0.5448.1000 | 16.0.5448.1000 |
| microsoft | microsoft_sharepoint_server_2019 | >= 16.0.0 < 16.0.10409.20047 | 16.0.10409.20047 |
| microsoft | microsoft_sharepoint_server_subscription_edition | >= 16.0.0 < 16.0.17328.20292 | 16.0.17328.20292 |
| microsoft | sharepoint_server | < 16.0.17328.20292 | 16.0.17328.20292 |
| microsoft | sharepoint_server | — | — |
| microsoft | sharepoint_server | — | — |
| msrc | microsoft_sharepoint_enterprise_server_2016 | — | — |
| msrc | microsoft_sharepoint_server_2019 | — | — |
| msrc | microsoft_sharepoint_server_subscription_edition | — | — |
Detection & IOCsextracted from sources · hover to see the quote
snort
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HUNTING Microsoft Sharepoint SPXmlDataSource ASPX DataFile Fetch Inbound (CVE-2024-30043)"; flow:established,to_client; http.response_body; content:"|3c 21|DOCTYPE"; startswith; content:"|3c|SharePoint|3a|SPXmlDataSource"; fast_pattern; content:"DataFile|3d 22|"; pcre:"/^(?:(?:file|smb)\x3a\x2f{2}|\x5c+)/R"; reference:url,github.com/W01fh4cker/CVE-2024-30043-XXE; reference:cve,2024-30043; classtype:web-application-attack; sid:2064128; rev:1; metadata:affected_product Microsoft_Sharepoint, attack_target Server, tls_state TLSDecrypt, created_at 2025_08_22, cve CVE_2024_30043, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_08_22, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)- →Detect HTTP responses containing both a DOCTYPE declaration at the start of the body and a SharePoint SPXmlDataSource element, where the DataFile attribute value begins with a file://, smb://, or UNC (\\) path — the core exploit pattern for CVE-2024-30043.
- →The exploit relies on Out-of-Band XXE using parameter entities. Look for outbound HTTP requests from the SharePoint server to attacker-controlled infrastructure triggered during XML parsing, even when DtdProcessing is set to Prohibit. ↗
- →Exploitation requires a low-privileged authenticated SharePoint user to upload a malicious XML file to a SharePoint document library and then reference it via SPXmlDataSource. Monitor for XML file uploads followed by DataFile references to those paths. ↗
- →Watch for NTLM authentication attempts originating from the SharePoint server to external or unexpected hosts, which may indicate NTLM Relaying via XXE exploitation of CVE-2024-30043. ↗
- ·The Snort/ET rule requires TLS decryption (tls_state TLSDecrypt) to inspect HTTP response bodies. Without TLS inspection in the network sensor, this rule will not fire on HTTPS SharePoint traffic.
- ·The Out-of-Band XXE technique works despite DtdProcessing.Prohibit being set, because .NET's XmlTextReader resolves parameter entities before enforcing the DTD prohibition — patching or detection must not assume DtdProcessing.Prohibit fully blocks XXE when an XmlResolver is also configured. ↗
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
vendor_msrc6.5MEDIUM
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GHSA
GHSA-j424-2gw5-5mrv: Microsoft SharePoint Server Information Disclosure Vulnerability
ghsa_unreviewed·2024-05-14
CVE-2024-30043 [MEDIUM] CWE-611 GHSA-j424-2gw5-5mrv: Microsoft SharePoint Server Information Disclosure Vulnerability
Microsoft SharePoint Server Information Disclosure Vulnerability
Microsoft
Microsoft SharePoint Server Information Disclosure Vulnerability
vendor_msrc·2024-05-14·CVSS 6.5
CVE-2024-30043 [MEDIUM] CWE-611 Microsoft SharePoint Server Information Disclosure Vulnerability
Microsoft SharePoint Server Information Disclosure Vulnerability
FAQ: What type of information could be disclosed by this vulnerability?
The type of information that could be disclosed if an attacker successfully exploited this vulnerability is file content. The scope of file content which could be accessed is dependent on the privileges of compromised user.
Microsoft Office SharePoint: Microsoft Office SharePoint
Microsoft: Microsoft
Customer Action Required: Yes
Impact: Information Disclosure
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;DOS:N/A
Reference: https://www.microsoft.com/download/details.aspx?familyid=c6668bbd-c1c8-45c4-9a1f-3013d6db3569
Reference: https://support.microsoft.com/help/5002598
Reference: https://www.m
Suricata
ET HUNTING Microsoft Sharepoint SPXmlDataSource ASPX DataFile Fetch Inbound (CVE-2024-30043)
suricata·2025-08-22·CVSS 6.5
CVE-2024-30043 [MEDIUM] ET HUNTING Microsoft Sharepoint SPXmlDataSource ASPX DataFile Fetch Inbound (CVE-2024-30043)
ET HUNTING Microsoft Sharepoint SPXmlDataSource ASPX DataFile Fetch Inbound (CVE-2024-30043)
Rule: alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HUNTING Microsoft Sharepoint SPXmlDataSource ASPX DataFile Fetch Inbound (CVE-2024-30043)"; flow:established,to_client; http.response_body; content:"|3c 21|DOCTYPE"; startswith; content:"|3c|SharePoint|3a|SPXmlDataSource"; fast_pattern; content:"DataFile|3d 22|"; pcre:"/^(?:(?:file|smb)\x3a\x2f{2}|\x5c+)/R"; reference:url,github.com/W01fh4cker/CVE-2024-30043-XXE; reference:cve,2024-30043; classtype:web-application-attack; sid:2064128; rev:1; metadata:affected_product Microsoft_Sharepoint, attack_target Server, tls_state TLSDecrypt, created_at 2025_08_22, cve CVE_2024_30043, deployment Perimeter, deployment Internal, confidence High, sign
No public exploits indexed.
Trendmicro
CVE-2024-30043: Abusing URL Parsing Confusion to Exploit XXE on SharePoint Server and Cloud
blogs_trendmicro·2024-05-30·CVSS 6.5
CVE-2024-30043 [MEDIUM] CVE-2024-30043: Abusing URL Parsing Confusion to Exploit XXE on SharePoint Server and Cloud
## CVE-2024-30043: Abusing URL Parsing Confusion to Exploit XXE on SharePoint Server and Cloud
Learn about the XML eXternal Entity (XXE) injection vulnerability found in SharePoint.
By: Zero Day Initiative 2024/05/30 Read time: ( words)
Save to Folio
Yes, the title is right. This blog covers an XML eXternal Entity (XXE) injection vulnerability that I found in SharePoint. The bug was recently patched by Microsoft. In general, XXE vulnerabilities are not very exciting in terms of discovery and related technical aspects. They may sometimes be fun to exploit and exfiltrate data (or do other nasty things) in real environments, but in the vulnerability research world, you typically find them, report them, and forget about them.
So why am I writing a blog post about an XXE? I have two reason
Trendmicro
CVE-2024-30043: Abusing URL Parsing Confusion to Exploit XXE on SharePoint Server and Cloud
blogs_trendmicro·2024-05-30·CVSS 6.5
CVE-2024-30043 [MEDIUM] CVE-2024-30043: Abusing URL Parsing Confusion to Exploit XXE on SharePoint Server and Cloud
# CVE-2024-30043: Abusing URL Parsing Confusion to Exploit XXE on SharePoint Server and Cloud
Learn about the XML eXternal Entity (XXE) injection vulnerability found in SharePoint.
By: Zero Day Initiative
2024/05/30
Read time: ( words)
Save to Folio
Yes, the title is right. This blog covers an XML eXternal Entity (XXE) injection vulnerability that I found in SharePoint. The bug was recently patched by Microsoft. In general, XXE vulnerabilities are not very exciting in terms of discovery and related technical aspects. They may sometimes be fun to exploit and exfiltrate data (or do other nasty things) in real environments, but in the vulnerability research world, you typically find them, report them, and forget about them.
So why am I writing a blog post about an XXE? I have two reason
Trendmicro
The May 2024 Security Update Review
blogs_trendmicro·2024-05-14·CVSS 7.8
[HIGH] The May 2024 Security Update Review
# The May 2024 Security Update Review
Get the May 2024 security update and review.
By: Dustin Childs
2024/05/14
Read time: ( words)
Save to Folio
Welcome to the second Tuesday of May. As expected, Adobe and Microsoft have released their standard bunch of security patches. Take a break from your regular activities and join us as we review the details of their latest advisories. If you’d rather watch the full video recap covering the entire release, you can check it out here:
Apple Patches for May 2024
Apple kicked off the May release cycle with a group of updates for their macOS and iOS platforms. Most notable is a fix for CVE-2024-23296 for iOS 16.7.8 and iPadOS 16.7.8. This vulnerability is a memory corruption issue in RTKit that could allow attackers to bypass kernel memory protec
Trendmicro
The May 2024 Security Update Review
blogs_trendmicro·2024-05-14·CVSS 7.8
[HIGH] The May 2024 Security Update Review
## The May 2024 Security Update Review
Get the May 2024 security update and review.
By: Dustin Childs 2024/05/14 Read time: ( words)
Save to Folio
Welcome to the second Tuesday of May. As expected, Adobe and Microsoft have released their standard bunch of security patches. Take a break from your regular activities and join us as we review the details of their latest advisories. If you’d rather watch the full video recap covering the entire release, you can check it out here:
Apple Patches for May 2024
Apple kicked off the May release cycle with a group of updates for their macOS and iOS platforms. Most notable is a fix for CVE-2024-23296 for iOS 16.7.8 and iPadOS 16.7.8 . This vulnerability is a memory corruption issue in RTKit that could allow attackers to bypass kernel memory prote
Bleepingcomputer
Microsoft May 2024 Patch Tuesday fixes 3 zero-days, 61 flaws
blogs_bleepingcomputer·2024-05-14·CVSS 8.8
[HIGH] Microsoft May 2024 Patch Tuesday fixes 3 zero-days, 61 flaws
## Microsoft May 2024 Patch Tuesday fixes 3 zero-days, 61 flaws
## Lawrence Abrams
17 Elevation of Privilege Vulnerabilities
2 Security Feature Bypass Vulnerabilities
27 Remote Code Execution Vulnerabilities
7 Information Disclosure Vulnerabilities
3 Denial of Service Vulnerabilities
4 Spoofing Vulnerabilities
The total count of 61 flaws does not include 2 Microsoft Edge flaws fixed on May 2nd and four fixed on May 10th.
To learn more about the non-security updates released today, you can review our dedicated articles on the new Windows 11 KB5037771 cumulative update and the Windows 10 KB5037768 update .
## Three zero-days fixed
This month's Patch Tuesday fixes two actively exploited and one publicly disclosed zero-day vulnerabilities.
Microsoft classifies a zero-day as a flaw
2024-05-14
Published