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CVE-2011-4361

19
FAUCET Score

CVE-2011-4361 describes an information disclosure vulnerability in MediaWiki versions prior to 1.17.1, affecting Debian Linux distributions. It allows remote attackers to bypass read permissions for action=ajax requests, potentially revealing sensitive information through functions like SpecialUpload::ajaxGetExistsWarning or various extensions such as CategoryTree. With a CVSS score of 5.0 (AV:N/AC:L/Au:N/C:P/I:N/A:N), this vulnerability is of medium severity, requiring no authentication and having a low attack complexity, but only resulting in partial confidentiality impact. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, suggesting it is not a widely targeted vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.17.1CPE matchmatch criteria
cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:P/I:N/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.62%
Probability of exploitation in next 30 days
EPSS Percentile
83.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0262 is in the 76th percentile among its peer group of 23,684 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 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/2011-November/000104.html
PatchVendor Advisory
openwall.com / lists/oss-security/2011/11/29/12
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/11/29/6
Mailing ListThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
bugzilla.wikimedia.org / show_bug.cgi
Issue TrackingPatchVendor Advisory
debian.org / security/2011/dsa-2366
Third Party Advisory