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CVE-2025-67475

Stored XSS through edit summaries in MW Core

0.0 NoneFix available

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 includes/CommentFormatter/CommentParser.Php.

This issue affects MediaWiki: from * before 1.39.16, 1.43.6, 1.44.3, 1.45.1.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
None

Exploit likelihood

0.24%Up 0.2 points since Feb 3, 2026
90%50%10%1%

What each source reports

CVE List Score used 0.0

Stored XSS through edit summaries in MW Core

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 includes/CommentFormatter/CommentParser.Php.

This issue affects MediaWiki: from * before 1.39.16, 1.43.6, 1.44.3, 1.45.1.

Record
CVE-2025-67475
CVSS 4.0
0.0 NoneCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:U
Weakness
CWE-79
Updated
2026-11-02
EUVDEUVD-2025-206758 No score

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 includes/CommentFormatter/CommentParser.Php.

This issue affects MediaWiki: from * before 1.39.16, 1.43.6, 1.44.3, 1.45.1.

Record
EUVD-2025-206758
Updated
2026-11-02
GitHub AdvisoriesGHSA-2pvg-g56g-vcf2 0.0

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')...

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 includes/CommentFormatter/CommentParser.Php.

This issue affects MediaWiki: from * before 1.39.16, 1.43.6, 1.44.3, 1.45.1.

Record
GHSA-2pvg-g56g-vcf2
CVSS 4.0
0.0 NoneCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/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
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
NVD 0.0

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 includes/CommentFormatter/CommentParser.Php.

This issue affects MediaWiki: from * before 1.39.16, 1.43.6, 1.44.3, 1.45.1.

Record
CVE-2025-67475
CVSS 4.0
0.0 NoneCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/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
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSV 6.1

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 includes/CommentFormatter/CommentParser.Php.

This issue affects MediaWiki: from * before 1.39.16, 1.43.6, 1.44.3, 1.45.1.

Record
CVE-2025-67475
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVDEBIAN-CVE-2025-67475 6.1

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 includes/CommentFormatter/CommentParser.Php. This issue affects MediaWiki: from * before 1.39.16, 1.43.6, 1.44.3, 1.45.1.

Record
DEBIAN-CVE-2025-67475
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVUBUNTU-CVE-2025-67475 0.0

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 includes/CommentFormatter/CommentParser.Php. This issue affects MediaWiki: from * before 1.39.16, 1.43.6, 1.44.3, 1.45.1.

Record
UBUNTU-CVE-2025-67475
CVSS 4.0
0.0 NoneCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:U
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
mediawiki
Debian:12
 before 1:1.39.17-1~deb12u1, plus listed versions
1:1.39.10-11:1.39.10-1~deb12u11:1.39.12-1~deb12u11:1.39.13-1~deb12u11:1.39.2-1
Show 9 moreShow less
1:1.39.4-11:1.39.4-1~deb12u11:1.39.4-21:1.39.5-11:1.39.5-1~deb12u11:1.39.6-11:1.39.7-11:1.39.7-1~deb12u11:1.39.8-1
1:1.39.17-1~deb12u1
mediawiki
Debian:13
 before 1:1.43.6+dfsg-1~deb13u1, plus listed versions
1:1.43.3+dfsg-11:1.43.5+dfsg-1
1:1.43.6+dfsg-1~deb13u1
mediawiki
Debian:14
 before 1:1.43.6+dfsg-1, plus listed versions
1:1.43.3+dfsg-11:1.43.5+dfsg-11:1.43.6+dfsg-1~deb13u1
1:1.43.6+dfsg-1
mediawiki
Debian:11
From an advisory covering 7 CVEs
 before 1:1.35.13-1+deb11u6, plus listed versions
1:1.35.11-1~deb11u11:1.35.13-1+deb11u21:1.35.13-1+deb11u31:1.35.13-1+deb11u41:1.35.13-1+deb11u5
Show 13 moreShow less
1:1.35.13-1~deb11u11:1.35.2-11:1.35.3-11:1.35.4-11:1.35.4-1+deb11u21:1.35.4-1~deb11u11:1.35.5-11:1.35.5-21:1.35.6-11:1.35.7-11:1.35.8-11:1.35.8-1.11:1.35.8-1~deb11u1
1:1.35.13-1+deb11u6
mediawiki
Debian:12
From an advisory covering 19 CVEs
 before 1:1.39.17-1~deb12u1, plus listed versions
1:1.39.10-11:1.39.10-1~deb12u11:1.39.12-1~deb12u11:1.39.13-1~deb12u11:1.39.2-1
Show 9 moreShow less
1:1.39.4-11:1.39.4-1~deb12u11:1.39.4-21:1.39.5-11:1.39.5-1~deb12u11:1.39.6-11:1.39.7-11:1.39.7-1~deb12u11:1.39.8-1
1:1.39.17-1~deb12u1
mediawiki
Debian:13
From an advisory covering 19 CVEs
 before 1:1.43.6+dfsg-1~deb13u1, plus listed versions
1:1.43.3+dfsg-11:1.43.5+dfsg-1
1:1.43.6+dfsg-1~deb13u1
mediawiki
Ubuntu:18.04:LTS
 All versions, plus listed versions
1:1.27.3-11:1.27.4-11:1.27.4-21:1.27.4-3
 None known
mediawiki
Ubuntu:Pro:20.04:LTS
 All versions, plus listed versions
1:1.31.2-1ubuntu11:1.31.5-11:1.31.5-1ubuntu11:1.31.5-21:1.31.5-3
Show 4 moreShow less
1:1.31.5-3ubuntu11:1.31.6-11:1.31.7-11:1.31.7-1ubuntu0.1~esm1
 None known
mediawiki
Ubuntu:Pro:22.04:LTS
 All versions, plus listed versions
1:1.35.3-11:1.35.4-11:1.35.5-11:1.35.5-1ubuntu11:1.35.5-1ubuntu21:1.35.5-1ubuntu31:1.35.6-11:1.35.6-1ubuntu0.1~esm1
 None known
mediawiki
Ubuntu:Pro:24.04:LTS
 All versions, plus listed versions
1:1.39.4-21:1.39.5-11:1.39.6-11:1.39.7-11:1.39.7-1ubuntu0.1~esm1
 None known
mediawiki
Ubuntu:25.10
 All versions, plus listed versions
1:1.43.1+dfsg-11:1.43.1+dfsg-21:1.43.3+dfsg-1
 None known
mediawiki
Ubuntu:26.10
 All versions, plus listed versions
1:1.43.8+dfsg-21:1.43.9+dfsg-11:1.43.9+dfsg-1ubuntu1
 None known
mediawiki
Ubuntu:26.04:LTS
 All versions, plus listed versions
1:1.43.3+dfsg-11:1.43.5+dfsg-11:1.43.6+dfsg-21:1.43.8+dfsg-11:1.43.8+dfsg-2
 None known

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-67475 is a none vulnerability (CVSS 0.0) in Mediawiki, published December 19, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.24%, the 15th percentile. Fixed in mediawiki 1:1.39.17-1~deb12u1.

References

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