CVE-2009-2401: Cross-site scripting (XSS) vulnerability in PHPEcho CMS 2.0-rc3 allows remote attackers to inject arbitrary we

Routine

MEDIUM 4.3DOWNGRADE

CVE-2009-2401 is a medium-severity flaw (CVSS 4.3) affecting phpecho cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in PHPEcho CMS 2.0-rc3 allows remote attackers to inject arbitrary web script or HTML via a forum post.

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	1.5% (top 26%)
CISA exploited list	No
Weakness	CWE-79
Published	2009-07-09
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: phpecho cms

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

Am I affected?

Timeline

2009-07-09 16:30 UTCPublished CVE record published
2026-06-16 23:09 UTCUpdated Record last modified

phpecho cms phpecho cms DOWNGRADE

Affected: 2.0-rc3

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0-rc3

1. Check installed version

apt-cache policy phpecho-cms || rpm -q phpecho-cms || phpecho-cms --version

2. No fixed release: DOWNGRADE to a release before 2.0-rc3 (Debian / Ubuntu)

apt-cache madison phpecho-cms sudo apt install phpecho-cms=<VERSION_BEFORE_2.0-rc3> sudo apt-mark hold phpecho-cms

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

dnf --showduplicates list phpecho-cms sudo dnf downgrade phpecho-cms-<VERSION_BEFORE_2.0-rc3> sudo dnf versionlock add phpecho-cms

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: PHPEcho CMS 2.0-rc3 - 'forum' Cross-Site Scripting Cookie Stealing / Blind SQL Injection

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-2009-2401?

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

Is CVE-2009-2401 being exploited?

CVE-2009-2401 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-2009-2401 affect?

CVE-2009-2401 affects phpecho cms. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in PHPEcho CMS 2.0-rc3 allows remote attackers to inject arbitrary web script or HTML via a forum post.

How urgent is CVE-2009-2401?

Priority 39/100. Public exploit reference

Related CVEs

CVE-2009-2402 HIGH 7.5 DOWNGRADE SQL injection vulnerability in index.php in the forum module in PHPEcho CMS 2.0-rc3 allows remote attackers to
CVE-2008-7034 HIGH 7.5 DOWNGRADE PHP remote file inclusion vulnerability in kernel/smarty/Smarty.class.php in PHPEcho CMS 2.0 rc3 allows remote
CVE-2008-0355 HIGH 7.5 UPGRADE SQL injection vulnerability in index.php in the forum module in PHPEcho CMS, probably 2.0-rc3 and earlier, all

References

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