CVE-2026-58028
published 2026-07-01CVE-2026-58028: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki, Wikimedia…
PriorityP428medium5.4CVSS 3.1
AVNACLPRLUIRSCCLILAN
EPSS
0.27%
18.6th percentile
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki, Wikimedia Foundation CentralAuth.
This vulnerability is associated with program files includes/Api/ApiFormatBase.Php, includes/Api/ApiHelp.Php, includes/ResourceLoader/Module.Php, includes/Hooks/Handlers/PageDisplayHookHandler.Php, includes/LogFormatter/PermissionChangeLogFormatter.Php.
This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9; CentralAuth: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| mediawiki | mediawiki | — | — |
| mediawiki | mediawiki | >= 1.43.0 < 1.43.9 | 1.43.9 |
| mediawiki | mediawiki | >= 1.44.0 < 1.44.6 | 1.44.6 |
| mediawiki | mediawiki | >= 1.45.0 < 1.45.4 | 1.45.4 |
| wikimedia_foundation | centralauth | >= * < 1.46.0, 1.45.4, 1.44.6, 1.43.9 | 1.46.0, 1.45.4, 1.44.6, 1.43.9 |
| wikimedia_foundation | mediawiki | >= * < 1.46.0, 1.45.4, 1.44.6, 1.43.9 | 1.46.0, 1.45.4, 1.44.6, 1.43.9 |
CVSS provenance
nvdv3.15.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
nvdv4.00.0NONECVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
VulDB
Wikimedia CentralAuth up to 1.45.x/1.45.3/1.44.5/1.43.8 ApiFormatBase.Php cross site scripting (Nessus ID 324029)
vuldb·2026-07-03
CVE-2026-58028 [NONE] Wikimedia CentralAuth up to 1.45.x/1.45.3/1.44.5/1.43.8 ApiFormatBase.Php cross site scripting (Nessus ID 324029)
A vulnerability classified as problematic was found in Wikimedia CentralAuth up to 1.45.x/1.45.3/1.44.5/1.43.8. This affects an unknown function of the file includes/Api/ApiFormatBase.Php. Executing a manipulation can lead to cross site scripting.
This vulnerability is tracked as CVE-2026-58028. The attack can be launched remotely. No exploit exists.
Upgrading the affected component is advised.
GHSA
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki, Wikimedia Foundation CentralAuth.
ghsa_unreviewed·2026-07-01
CVE-2026-58028 [LOW] CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki, Wikimedia Foundation CentralAuth.
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki, Wikimedia Foundation CentralAuth.
This vulnerability is associated with program files includes/Api/ApiFormatBase.Php, includes/Api/ApiHelp.Php, includes/ResourceLoader/Module.Php, includes/Hooks/Handlers/PageDisplayHookHandler.Php, includes/LogFormatter/PermissionChangeLogFormatter.Php.
This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9; CentralAuth: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-07-01
Published