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CVE-2011-0526

17
FAUCET Score

CVE-2011-0526 is a cross-site scripting (XSS) vulnerability affecting Vanilla Forums prior to version 2.0.17, allowing remote attackers to inject malicious web scripts via the Target parameter during a sign-in action. With a CVSS score of 4.3, this vulnerability is of medium complexity to exploit and could lead to information disclosure or session hijacking, but not denial of service. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.0.16CPE matchmatch criteria
cpe:2.3:a:vanillaforums:vanilla:*:*:*:*:*:*:*:*
2.0.9CPE matchmatch criteria
cpe:2.3:a:vanillaforums:vanilla:2.0.9:*:*:*:*:*:*:*
2.0.10CPE matchmatch criteria
cpe:2.3:a:vanillaforums:vanilla:2.0.10:*:*:*:*:*:*:*
2.0.11CPE matchmatch criteria
cpe:2.3:a:vanillaforums:vanilla:2.0.11:*:*:*:*:*:*:*
2.0.12CPE matchmatch criteria
cpe:2.3:a:vanillaforums:vanilla:2.0.12:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.27%
Probability of exploitation in next 30 days
EPSS Percentile
66.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0127 is in the 35th percentile among its peer group of 19,956 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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

openwall.com / lists/oss-security/2011/01/27/2
Exploit
openwall.com / lists/oss-security/2011/01/27/5
Exploit
secunia.com / advisories/43074
Vendor Advisory
osvdb.org / 70677
Exploit
vanillaforums.org / discussion/14397/vanilla-2.0.17-released
yehg.net / lab/pr0js/advisories/%5Bvanilla_forums-2.0.16%5D_cross_site_scripting
Exploit