CVE-2005-2011: Multiple cross-site scripting (XSS) vulnerabilities in paFAQ 1.0 Beta 4 allow remote attackers to inject arbit

Routine

MEDIUM 4.3DOWNGRADE

CVE-2005-2011 is a medium-severity flaw (CVSS 4.3) affecting pafaq. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple cross-site scripting (XSS) vulnerabilities in paFAQ 1.0 Beta 4 allow remote attackers to inject arbitrary web script or HTML, as demonstrated via the id parameter in a Question action.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Published	2005-06-20
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: php arena

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

Am I affected?

Timeline

2005-06-20 04:00 UTCPublished CVE record published
2026-06-16 22:14 UTCUpdated Record last modified

php arena pafaq DOWNGRADE

Affected: 1.0_beta_4

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0_beta_4

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0_beta_4 (Debian / Ubuntu)

apt-cache madison pafaq sudo apt install pafaq=<VERSION_BEFORE_1.0_beta_4> sudo apt-mark hold pafaq

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list pafaq sudo dnf downgrade pafaq-<VERSION_BEFORE_1.0_beta_4> sudo dnf versionlock add pafaq

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: PAFaq - Question Cross-Site Scripting

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-2005-2011?

pafaq: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2005-2011 being exploited?

CVE-2005-2011 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-2005-2011 affect?

CVE-2005-2011 affects pafaq. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in paFAQ 1.0 Beta 4 allow remote attackers to inject arbitrary web script or HTML, as demonstrated via the id parameter in a Question action.

How urgent is CVE-2005-2011?

Priority 38/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2005-2014 MEDIUM 4.6 DOWNGRADE The "upload a language pack" feature in paFAQ 1.0 Beta 4 allows remote authenticated administrators to execute
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CVE-2005-2012 HIGH 7.5 DOWNGRADE Multiple SQL injection vulnerabilities in login in paFAQ 1.0 Beta 4 allow remote attackers to execute arbitrar
CVE-2005-0475 MEDIUM 6.4 DOWNGRADE SQL injection vulnerability in paFAQ Beta4, and possibly other versions, allows remote attackers to execute ar

References

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