CVE-2025-61640
published 2026-02-03CVE-2025-61640: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability…
PriorityP418medium4.8CVSS 3.1
AVNACLPRHUIRSCCLILAN
EPSS
0.22%
12.2th percentile
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files resources/src/mediawiki.Rcfilters/ui/RclToOrFromWidget.Js.
This issue affects MediaWiki: from * before 1.39.14, 1.43.4, 1.44.1.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | mediawiki | < mediawiki 1:1.39.17-1~deb12u1 (bookworm) | mediawiki 1:1.39.17-1~deb12u1 (bookworm) |
| mediawiki | mediawiki | < 1.39.14 | 1.39.14 |
| mediawiki | mediawiki | >= 0 < 1:1.35.13-1+deb11u5 | 1:1.35.13-1+deb11u5 |
| mediawiki | mediawiki | >= 0 < 1:1.39.17-1~deb12u1 | 1:1.39.17-1~deb12u1 |
| mediawiki | mediawiki | >= 0 < 1:1.43.6+dfsg-1~deb13u1 | 1:1.43.6+dfsg-1~deb13u1 |
| mediawiki | mediawiki | >= 0 < 1:1.43.5+dfsg-1 | 1:1.43.5+dfsg-1 |
| mediawiki | mediawiki | >= 1.39.15 < 1.43.4 | 1.43.4 |
| mediawiki | mediawiki | >= 1.43.5 < 1.44.1 | 1.44.1 |
| wikimedia_foundation | mediawiki | >= * < 1.39.14, 1.43.4, 1.44.1 | 1.39.14, 1.43.4, 1.44.1 |
CVSS provenance
nvdv3.14.8MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
nvdv4.00.0NONECVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/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
vendor_redhat4.6NONE
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GHSA
GHSA-39fr-2fph-j42r: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki
ghsa_unreviewed·2026-02-03
CVE-2025-61640 [LOW] CWE-79 GHSA-39fr-2fph-j42r: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files resources/src/mediawiki.Rcfilters/ui/RclToOrFromWidget.Js.
This issue affects MediaWiki: from * before 1.39.14, 1.43.4, 1.44.1.
OSV
CVE-2025-61640: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki
osv·2026-02-03
CVE-2025-61640 [NONE] CVE-2025-61640: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files resources/src/mediawiki.Rcfilters/ui/RclToOrFromWidget.Js. This issue affects MediaWiki: from * before 1.39.14, 1.43.4, 1.44.1.
Red Hat
MediaWiki: MediaWiki: Arbitrary code execution via Cross-site Scripting (XSS)
vendor_redhat·2026-02-02·CVSS 4.6
CVE-2025-61640 [NONE] MediaWiki: MediaWiki: Arbitrary code execution via Cross-site Scripting (XSS)
MediaWiki: MediaWiki: Arbitrary code execution via Cross-site Scripting (XSS)
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files resources/src/mediawiki.Rcfilters/ui/RclToOrFromWidget.Js.
This issue affects MediaWiki: from * before 1.39.14, 1.43.4, 1.44.1.
A flaw was found in MediaWiki. A remote attacker can exploit this Cross-site Scripting (XSS) vulnerability by injecting malicious scripts into web pages due to improper neutralization of input during web page generation. This could lead to arbitrary code execution in the context of the user's browser, potentially allowing for information disclosure or session hijacking.
Statement: A stored cross
Debian
CVE-2025-61640: mediawiki - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site ...
vendor_debian·2025
CVE-2025-61640 [NONE] CVE-2025-61640: mediawiki - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site ...
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files resources/src/mediawiki.Rcfilters/ui/RclToOrFromWidget.Js. This issue affects MediaWiki: from * before 1.39.14, 1.43.4, 1.44.1.
Scope: local
bookworm: resolved (fixed in 1:1.39.17-1~deb12u1)
bullseye: resolved (fixed in 1:1.35.13-1+deb11u5)
forky: resolved (fixed in 1:1.43.5+dfsg-1)
sid: resolved (fixed in 1:1.43.5+dfsg-1)
trixie: resolved (fixed in 1:1.43.6+dfsg-1~deb13u1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2025-61640 mediawiki: MediaWiki: Arbitrary code execution via Cross-site Scripting (XSS) [fedora-42]
bugzilla·2026-02-03
CVE-2025-61640 [NONE] CVE-2025-61640 mediawiki: MediaWiki: Arbitrary code execution via Cross-site Scripting (XSS) [fedora-42]
CVE-2025-61640 mediawiki: MediaWiki: Arbitrary code execution via Cross-site Scripting (XSS) [fedora-42]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Discussion:
This message is a reminder that Fedora Linux 42 is nearing its end of life.
Fedora will stop maintaining and issuing updates for Fedora Linux 42 on 2026-05-13.
It is Fedora's policy to close all bug reports from releases that are no longer
maintained. At that time this bug will be closed as EOL if it remains open with a
'version' of '42'.
Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained v
Wiz
CVE-2025-61640 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 5.1
CVE-2025-61640 [MEDIUM] CVE-2025-61640 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2025-61640 :
NixOS vulnerability analysis and mitigation
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files resources/src/mediawiki.Rcfilters/ui/RclToOrFromWidget.Js.
This issue affects MediaWiki: from * before 1.39.14, 1.43.4, 1.44.1.
Source : NVD
Published February 3, 2026
Severity NONE
CNA Score N/A
Affected Technologies
NixOS
Linux Debian
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 0.3
Exploitation Probability (EPSS) N/A
Affected packages and libraries
mediawiki
Sources
NVD
Debian 11, 12, 13, 14 Severity MEDIUM Has Fix Added at
2026-02-03
Published