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CVE-2017-8808

20
FAUCET Score

CVE-2017-8808 is a cross-site scripting (XSS) vulnerability affecting MediaWiki versions before 1.27.4, 1.28.3, and 1.29.2. It occurs when the $wgShowExceptionDetails setting is disabled and a browser sends non-standard URL escaping. The vulnerability has a CVSS score of 6.1 (Medium), indicating it can be exploited remotely with low attack complexity, requiring user interaction, and potentially leading to low impact on confidentiality and integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

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

6.1MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.04%
Probability of exploitation in next 30 days
EPSS Percentile
60.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0104 is in the 73rd percentile among its peer group of 26,221 CVEs.

Social Chatter

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