CVE-2020-29002 json
includes/CologneBlueTemplate.php in the CologneBlue skin for MediaWiki through 1.35 allows XSS via a qbfind message supplied by an administ…
published 5y ago modified 4mo ago also BIT-mediawiki-2020-29002 , EUVD-2020-21384
- cvss
- 4.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 45%
- public exploits
- 0
- none known
Summary
includes/CologneBlueTemplate.php in the CologneBlue skin for MediaWiki through 1.35 allows XSS via a qbfind message supplied by an administrator.
Patch / fix
- bitnami mediawiki 1.35.1
Is CVE-2020-29002 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
0.53% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- phabricator.wikimedia.org https://phabricator.wikimedia.org/T267278 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
| OSV | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | mediawiki | <1.35.1 |
1.35.1 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
phabricator.wikimedia.org
/T267278
exploit, issue-tracking, patch, vendor-advisory, web
-
gerrit.wikimedia.org
/r/q/Ie798a4f16d0ac2a4871aefeb593d962966aeb6b0
patch, vendor-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2020-29002
web
Sources
- CVE List CVE-2020-29002
- NVD CVE-2020-29002
- OSV BIT-mediawiki-2020-29002
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.