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CVE-2011-1838

24
FAUCET Score

CVE-2011-1838 describes multiple cross-site scripting (XSS) vulnerabilities in TWiki before version 5.0.2, specifically within the TemplateLogin.pm component. Attackers can exploit this by injecting arbitrary web script or HTML via the 'origurl' parameter when accessing view or login scripts. This vulnerability has a CVSS score of 4.3 (Medium), indicating a network-based attack with medium complexity and a potential impact of partial integrity compromise. While not listed in CISA's KEV catalog, an exploit is publicly available on ExploitDB, though there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.0.1CPE matchmatch criteria
cpe:2.3:a:twiki:twiki:*:*:*:*:*:*:*:*
4.0.0CPE matchmatch criteria
cpe:2.3:a:twiki:twiki:4.0.0:*:*:*:*:*:*:*
4.0.1CPE matchmatch criteria
cpe:2.3:a:twiki:twiki:4.0.1:*:*:*:*:*:*:*
4.0.2CPE matchmatch criteria
cpe:2.3:a:twiki:twiki:4.0.2:*:*:*:*:*:*:*
4.0.3CPE matchmatch criteria
cpe:2.3:a:twiki:twiki:4.0.3:*:*:*:*:*:*:*

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
2.73%
Probability of exploitation in next 30 days
EPSS Percentile
84.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-35761 · May 18, 2011
This CVE's current EPSS score of 0.0273 is in the 76th 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

secunia.com / advisories/44594
Vendor Advisory
securityreason.com / securityalert/8257
securitytracker.com / id
twiki.org / cgi-bin/view/Codev/SecurityAlert-CVE-2011-1838
Patch
mavitunasecurity.com / XSS-vulnerability-in-Twiki
Exploit
securityfocus.com / archive/1/518038/100/0/threaded
securityfocus.com / bid/47899
Exploit
vupen.com / english/advisories/2011/1258
Vendor Advisory