Open Redirect in MediaWiki
CVE-2019-19709
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.
Vulnerability class: Open Redirect
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.016 (74.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
- MediaWiki
- Debian Linux — versions 9.0, 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- phabricator.wikimedia.org/T239466 (Exploit, Vendor Advisory)
- gerrit.wikimedia.org/r/q/Ie54f366986056c876eade0fcad6c41f70b8b8de8 (Exploit, Vendor Advisory)
- www.debian.org/security/2019/dsa-4592 (vendor-advisory, Third Party Advisory)
- seclists.org/bugtraq/2019/Dec/48 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-19709?
- CVE-2019-19709 is a medium-severity vulnerability in MediaWiki, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2019-12-11.
- How severe is CVE-2019-19709?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2019-19709 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.