CVE-2011-5269: Cross-site scripting (XSS) vulnerability in ProjectForge before 3.5.3 allows remote authenticated users to inj

Q: How do I fix CVE-2011-5269?

projectforge: upgrade to newer than 3.5.2. Exact commands for each OS are on this page.

Q: Is CVE-2011-5269 being exploited?

CVE-2011-5269 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2011-5269 affect?

CVE-2011-5269 affects projectforge. Severity is low (CVSS 3.5). Cross-site scripting (XSS) vulnerability in ProjectForge before 3.5.3 allows remote authenticated users to inject arbitrary web script or HTML via a validation message.

Q: How urgent is CVE-2011-5269?

Priority 28/100. No elevated risk signals yet.

Routine

LOW 3.5UPGRADE

CVE-2011-5269 is a low-severity flaw (CVSS 3.5) affecting projectforge. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in ProjectForge before 3.5.3 allows remote authenticated users to inject arbitrary web script or HTML via a validation message.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	3.5 (Low)
EPSS exploit chance	1.1% (top 35%)
CISA exploited list	No
Weakness	CWE-79
Published	2014-01-02
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: projectforge

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2014-01-02 14:59 UTCPublished CVE record published
2026-06-16 23:36 UTCUpdated Record last modified

projectforge projectforge UPGRADE

Affected: <= 3.5.2 · 3.4.0 · 3.4.1 · 3.4.2 · 3.4.3 · 3.5.0 · 3.5.1

Fixed in: newer than 3.5.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy projectforge || rpm -q projectforge || projectforge --version

2. UPGRADE to newer than 3.5.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade projectforge

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade projectforge

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2011-5269?

projectforge: upgrade to newer than 3.5.2. Exact commands for each OS are on this page.

Is CVE-2011-5269 being exploited?

CVE-2011-5269 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2011-5269 affect?

CVE-2011-5269 affects projectforge. Severity is low (CVSS 3.5). Cross-site scripting (XSS) vulnerability in ProjectForge before 3.5.3 allows remote authenticated users to inject arbitrary web script or HTML via a validation message.

How urgent is CVE-2011-5269?

Priority 28/100. No elevated risk signals yet.

Related CVEs

CVE-2013-7251 MEDIUM 6.8 UPGRADE Multiple cross-site request forgery (CSRF) vulnerabilities in ProjectForge before 5.3 allow remote attackers t
CVE-2013-7250 LOW 3.5 UPGRADE Cross-site scripting (XSS) vulnerability in the JsonBuilder implementation in ProjectForge before 5.3 allows r

References

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