CVE-2011-1133

Name: CVE-2011-1133
Creator: NVD / NIST
Published: 2019-11-05T21:15:10.667+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.77%

Last modified Jun 16, 2026

CVE-2011-1133 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Cross-Site Scripting (XSS) in Xinha, as included in the Serendipity package before 1.5.5, allows remote attackers to execute arbitrary code via plugins/ExtendedFileManager/backend.php.. EPSS estimates a 1.77% chance of exploitation in the next 30 days.

Description

Cross-Site Scripting (XSS) in Xinha, as included in the Serendipity package before 1.5.5, allows remote attackers to execute arbitrary code via plugins/ExtendedFileManager/backend.php.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

1.77%

75.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
S9y	Serendipity	< 1.5.5

References

https://blog.s9y.org/archives/224-Important-Security-Update-Serendipity-1.5.5-released.htmlRelease Notes, Vendor Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=611661Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2011-1133Third Party Advisory
https://www.openwall.com/lists/oss-security/2011/03/02/5Mailing List, Third Party Advisory
https://blog.s9y.org/archives/224-Important-Security-Update-Serendipity-1.5.5-released.htmlRelease Notes, Vendor Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=611661Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2011-1133Third Party Advisory
https://www.openwall.com/lists/oss-security/2011/03/02/5Mailing List, Third Party Advisory

Timeline

Published: Nov 5, 2019
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-1133?

Cross-Site Scripting (XSS) in Xinha, as included in the Serendipity package before 1.5.5, allows remote attackers to execute arbitrary code via plugins/ExtendedFileManager/backend.php.

How severe is CVE-2011-1133?

CVE-2011-1133 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.77% probability of exploitation in the next 30 days.

How do I fix CVE-2011-1133?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-1133?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST