CVE-2008-2855: Cross-site scripting (XSS) vulnerability in clanek.php in OwnRS Beta 3 allows remote attackers to inject arbit

Routine

MEDIUM 4.3DOWNGRADE

CVE-2008-2855 is a medium-severity flaw (CVSS 4.3) affecting ownrs. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in clanek.php in OwnRS Beta 3 allows remote attackers to inject arbitrary web script or HTML via the id parameter.

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
Weakness	CWE-79
Published	2008-06-25
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: ownrs

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

Am I affected?

Timeline

2008-06-25 12:36 UTCPublished CVE record published
2026-06-16 22:54 UTCUpdated Record last modified

ownrs ownrs DOWNGRADE

Affected: beta_3

Fixed in: no fixed release known

Safe to downgrade to: a release before beta_3

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before beta_3 (Debian / Ubuntu)

apt-cache madison ownrs sudo apt install ownrs=<VERSION_BEFORE_beta_3> sudo apt-mark hold ownrs

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

dnf --showduplicates list ownrs sudo dnf downgrade ownrs-<VERSION_BEFORE_beta_3> sudo dnf versionlock add ownrs

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: OwnRS blog beta3 - SQL Injection / 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-2008-2855?

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

Is CVE-2008-2855 being exploited?

CVE-2008-2855 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-2008-2855 affect?

CVE-2008-2855 affects ownrs. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in clanek.php in OwnRS Beta 3 allows remote attackers to inject arbitrary web script or HTML via the id parameter.

How urgent is CVE-2008-2855?

Priority 38/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2009-0384 MEDIUM 6.8 DOWNGRADE SQL injection vulnerability in autor.php in OwnRS CMS 1.2 allows remote attackers to execute arbitrary SQL com
CVE-2008-2856 HIGH 7.5 DOWNGRADE SQL injection vulnerability in clanek.php in OwnRS Beta 3 allows remote attackers to execute arbitrary SQL com

References

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