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CVE-2017-8814

19
FAUCET Score

CVE-2017-8814 describes a high-severity vulnerability in MediaWiki versions prior to 1.27.4, 1.28.3, and 1.29.2, where the language converter can be manipulated to replace text within tags through a crafted rule definition followed by extraneous data. This network-exploitable flaw has a CVSS score of 7.5, indicating a high impact on integrity without requiring user interaction or privileges. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.27.3CPE matchmatch criteria
cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
1.28.0CPE matchmatch criteria
cpe:2.3:a:mediawiki:mediawiki:1.28.0:*:*:*:*:*:*:*
1.28.1CPE matchmatch criteria
cpe:2.3:a:mediawiki:mediawiki:1.28.1:*:*:*:*:*:*:*
1.28.2CPE matchmatch criteria
cpe:2.3:a:mediawiki:mediawiki:1.28.2:*:*:*:*:*:*:*
1.29.0CPE matchmatch criteria
cpe:2.3:a:mediawiki:mediawiki:1.29.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.61%
Probability of exploitation in next 30 days
EPSS Percentile
73.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0161 is in the 55th percentile among its peer group of 51,553 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

lists.wikimedia.org / pipermail/mediawiki-announce/2017-November/000216.html
Mailing ListPatchVendor Advisory
debian.org / security/2017/dsa-4036
Third Party Advisory
securitytracker.com / id/1039812
Third Party AdvisoryVDB Entry