CVE-2019-9844
published 2019-04-09CVE-2019-9844: simple-markdown.js in Khan Academy simple-markdown before 0.4.4 allows XSS via a data: or vbscript: URI.
PriorityP423medium6.1CVSS 3.0
AVNACLPRNUIRSCCLILAN
EPSS
1.27%
66.6th percentile
simple-markdown.js in Khan Academy simple-markdown before 0.4.4 allows XSS via a data: or vbscript: URI.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| fedoraproject | fedora | — | — |
| khanacademy | simple-markdown | < 0.4.4 | 0.4.4 |
| khanacademy | simple-markdown | >= 0 < 0.4.4 | 0.4.4 |
CVSS provenance
nvdv3.06.1MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N
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GHSA
Cross-Site Scripting in simple-markdown
ghsa·2019-04-09
CVE-2019-9844 [MEDIUM] CWE-79 Cross-Site Scripting in simple-markdown
Cross-Site Scripting in simple-markdown
Versions of `simple-markdown` prior to 0.4.4 are vulnerable to Cross-Site Scripting. Due to insufficient input sanitization the package may render output containing malicious JavaScript. This vulnerability can be exploited through input of links containing `data` or VBScript URIs and a base64-encoded payload.
## Recommendation
Upgrade to version 0.4.4 or later.
OSV
Cross-Site Scripting in simple-markdown
osv·2019-04-09
CVE-2019-9844 [MEDIUM] Cross-Site Scripting in simple-markdown
Cross-Site Scripting in simple-markdown
Versions of `simple-markdown` prior to 0.4.4 are vulnerable to Cross-Site Scripting. Due to insufficient input sanitization the package may render output containing malicious JavaScript. This vulnerability can be exploited through input of links containing `data` or VBScript URIs and a base64-encoded payload.
## Recommendation
Upgrade to version 0.4.4 or later.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2019-9844 nodejs-simple-markdown: Cross-site script through the data of a vbscript link [fedora-all]
bugzilla·2019-04-02·CVSS 6.1
CVE-2019-9844 [MEDIUM] CVE-2019-9844 nodejs-simple-markdown: Cross-site script through the data of a vbscript link [fedora-all]
CVE-2019-9844 nodejs-simple-markdown: Cross-site script through the data of a vbscript link [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects
Bugzilla
CVE-2019-9844 nodejs-simple-markdown: Cross-site script through the data of a vbscript link
bugzilla·2019-04-02·CVSS 6.1
CVE-2019-9844 [MEDIUM] CVE-2019-9844 nodejs-simple-markdown: Cross-site script through the data of a vbscript link
CVE-2019-9844 nodejs-simple-markdown: Cross-site script through the data of a vbscript link
A flaw was found in nodejs-simple-markdown before version 0.4.4. Affected versions of this package are vulnerable to Cross-site Scripting (XSS) through the data of a vbscript link when base64 encoded.
Upstream issue/patch:
https://github.com/Khan/simple-markdown/pull/63
https://github.com/Khan/simple-markdown/pull/63/commits/a15cddf65215a39f2a31606873b89563db94de1d
Discussion:
Created nodejs-simple-markdown tracking bugs for this issue:
Affects: fedora-all [bug 1695304]
---
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual communit
https://github.com/Khan/simple-markdown/pull/63https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JFLP3KJVSV5VWMNEBRXLGRVYFXOV5KOG/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KZG2I7VH7WLSEUQ77KYP5CRAVFT2RK2U/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O5EFW655O3BXZYAPB65XEREXB2DSNSOT/https://www.npmjs.com/package/simple-markdown/v/0.4.4https://github.com/Khan/simple-markdown/pull/63https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JFLP3KJVSV5VWMNEBRXLGRVYFXOV5KOG/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KZG2I7VH7WLSEUQ77KYP5CRAVFT2RK2U/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O5EFW655O3BXZYAPB65XEREXB2DSNSOT/https://www.npmjs.com/package/simple-markdown/v/0.4.4
2019-04-09
Published