CVE-2017-8812
MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 allows remote attackers to inject > (greater than) characters via the id attribute of a headline.
02 Description
MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 allows remote attackers to inject > (greater than) characters via the id attribute of a headline.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.57% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 74.9% of scored records. A rank, not a probability.
- NVD base score
- 5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2017-11-15 08:00Z8 YR AGO
- Last updated
- 2024-08-05 16:48Z2 YR AGO
- Reserved
- 2017-05-07
- Assigning CNA
- debian
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- No CWE assigned
- Data version
- 5.1
- Document digest
- 0d9e98fb8d11b52d3142c1a7d8608d79cc866e116e94818c89e12219eb3ec10f
05 Affected products
06 References
- www.securitytracker.com1039812http://www.securitytracker.com/id/1039812
- lists.wikimedia.orghttps://lists.wikimedia.org/pipermail/mediawiki-announce/2017-November/000216.html
- www.debian.orgDSA-4036https://www.debian.org/security/2017/dsa-4036
07 Fixed in
Arch Linux
- mediawiki Fixed in 1.29.2-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Debian 12
- mediawiki Fixed in 1:1.27.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- mediawiki Fixed in 1:1.27.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- mediawiki Fixed in 1:1.27.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.