CVE-2012-6523: Multiple cross-site scripting (XSS) vulnerabilities in w-CMS 2.01 allow remote attackers to inject arbitrary w

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MEDIUM 4.3DOWNGRADE

CVE-2012-6523 is a medium-severity flaw (CVSS 4.3) affecting w-cms. 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 w-CMS 2.01 allow remote attackers to inject arbitrary web script or HTML via (1) the p parameter in the getMenus function in codes/wcms.php; or the COMMENT parameter in (2) blog.php, (3) guestbook.php, or (4) forum.php in codes/. NOTE: some of these details are obtained from third party information.

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	1.9% (top 21%)
CISA exploited list	No
Weakness	CWE-79
Published	2013-01-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: w-cms

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

Am I affected?

Timeline

2013-01-31 05:44 UTCPublished CVE record published
2026-06-16 23:48 UTCUpdated Record last modified

w-cms w-cms DOWNGRADE

Affected: 2.01

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.01

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.01 (Debian / Ubuntu)

apt-cache madison w-cms sudo apt install w-cms=<VERSION_BEFORE_2.01> sudo apt-mark hold w-cms

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

dnf --showduplicates list w-cms sudo dnf downgrade w-cms-<VERSION_BEFORE_2.01> sudo dnf versionlock add w-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: w-CMS 2.01 - Multiple Vulnerabilities

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-2012-6523?

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

Is CVE-2012-6523 being exploited?

CVE-2012-6523 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-2012-6523 affect?

CVE-2012-6523 affects w-cms. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in w-CMS 2.01 allow remote attackers to inject arbitrary web script or HTML via (1) the p parameter in the getMenus function in codes/wcms.php; or the COMMENT parameter in (2) blog.php, (3

How urgent is CVE-2012-6523?

Priority 40/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2012-6522 MEDIUM 5.0 DOWNGRADE Directory traversal vulnerability in the getContent function in codes/wcms.php in w-CMS 2.01 allows remote att

References

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