CVE-2005-0857: Cross-site scripting (XSS) vulnerability in avatar.php for CoolForum 0.8 and earlier allows remote attackers t

Q: How do I fix CVE-2005-0857?

coolforum: upgrade to newer than 0.8. Exact commands for each OS are on this page.

Q: Is CVE-2005-0857 being exploited?

CVE-2005-0857 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-2005-0857 affect?

CVE-2005-0857 affects coolforum. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in avatar.php for CoolForum 0.8 and earlier allows remote attackers to inject arbitrary web script or HTML via the img parameter.

Q: How urgent is CVE-2005-0857?

Priority 40/100. Public exploit reference

This month

MEDIUM 4.3UPGRADE

CVE-2005-0857 is a medium-severity flaw (CVSS 4.3) affecting coolforum. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in avatar.php for CoolForum 0.8 and earlier allows remote attackers to inject arbitrary web script or HTML via the img parameter.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.8% (top 22%)
CISA exploited list	No
Published	2005-05-02
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: coolforum

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

Am I affected?

Timeline

2005-05-02 04:00 UTCPublished CVE record published
2026-06-16 22:11 UTCUpdated Record last modified

coolforum coolforum UPGRADE

Affected: <= 0.8

Fixed in: newer than 0.8

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 0.8 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade coolforum

Note

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

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: CoolForum 0.5/0.7/0.8 - 'avatar.php?img' 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-2005-0857?

coolforum: upgrade to newer than 0.8. Exact commands for each OS are on this page.

Is CVE-2005-0857 being exploited?

CVE-2005-0857 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-2005-0857 affect?

CVE-2005-0857 affects coolforum. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in avatar.php for CoolForum 0.8 and earlier allows remote attackers to inject arbitrary web script or HTML via the img parameter.

How urgent is CVE-2005-0857?

Priority 40/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

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CVE-2005-0856 HIGH 7.5 UPGRADE CoolForum 0.8.1 beta and earlier allows remote attackers to manipulate SQL commands via certain requests to (1
CVE-2005-0855 HIGH 10.0 UPGRADE CoolForum 0.8.1 beta and earlier allows remote attackers to obtain sensitive path information via direct reque
CVE-2002-1515 MEDIUM 5.0 DOWNGRADE Directory traversal vulnerability in avatar.php in CoolForum 0.5 beta allows remote attackers to read arbitrar

References

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