CVE-2019-19709 json
Possible to circumvent title-blacklist
published 2019-12-11 6 y ago modified 2026-06-17 4 mo ago also GHSA-pjv5-vv93-p648 , EUVD-2022-4790
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 75%
- public exploits
- 0
- none known
Summary
MediaWiki through 1.33.1 allows attackers to bypass the Title_blacklist protection mechanism by starting with an arbitrary title, establishing a non-resolvable redirect for the associated page, and using redirect=1 in the action API when editing that page.
Patch / fix
- packagist mediawiki/core 1.31.6, 1.32.6, 1.33.2, 1.34.0
- mediawiki Debian 14, Debian 13, Debian 12 1:1.31.6-1
debian advisories DEBIAN-CVE-2019-19709
Exploit prediction
1.56% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- phabricator.wikimedia.org https://phabricator.wikimedia.org/T239466 referenced PoC, tagged "exploit" by a source, unverified
- gerrit.wikimedia.org https://gerrit.wikimedia.org/r/q/Ie54f366986056c876eade0fcad6c41f70b8b8de8 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 5.8 | AV:N/AC:M/Au:N/C:P/I:P/A:N |
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | mediawiki/core | >=1.31.0, <1.31.6 >=1.32.0, <1.32.6 >=1.33.0, <1.33.2 >=1.33.99, <1.34.0 |
1.31.6 1.32.6 1.33.2 1.34.0 |
Classification
- Weakness
-
- CWE-601 URL Redirection to Untrusted Site
References
-
phabricator.wikimedia.org
/T239466
web, exploit, vendor-advisory
-
gerrit.wikimedia.org
/r/q/Ie54f366986056c876eade0fcad6c41f70b8b8de8
web, exploit, vendor-advisory
-
debian.org
/security/2019/dsa-4592
vendor-advisory, web, third-party-advisory
-
seclists.org
/bugtraq/2019/Dec/48
mailing-list, web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2019-19709
advisory
-
github.com
/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2019-19709.yaml
web
-
github.com
/wikimedia/mediawiki
package
Sources
- CVE List CVE-2019-19709
- GitHub Advisory GHSA-pjv5-vv93-p648
- NVD CVE-2019-19709
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