CVE-2012-4901: Cross-site scripting (XSS) vulnerability in Template CMS 2.1.1 and earlier allows remote attackers to inject a

Q: How do I fix CVE-2012-4901?

template cms: upgrade to newer than 2.1.1. Exact commands for each OS are on this page.

Q: Is CVE-2012-4901 being exploited?

CVE-2012-4901 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-2012-4901 affect?

CVE-2012-4901 affects template cms. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in Template CMS 2.1.1 and earlier allows remote attackers to inject arbitrary web script or HTML via the themes_editor parameter in an add_template action to admin/index.php.

Q: How urgent is CVE-2012-4901?

Priority 40/100. Public exploit reference

This month

MEDIUM 4.3UPGRADE

CVE-2012-4901 is a medium-severity flaw (CVSS 4.3) affecting template 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 Template CMS 2.1.1 and earlier allows remote attackers to inject arbitrary web script or HTML via the themes_editor parameter in an add_template action to admin/index.php.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	2.0% (top 19%)
CISA exploited list	No
Weakness	CWE-79
Published	2015-05-20
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: template cms project

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

Am I affected?

Timeline

2015-05-20 19:59 UTCPublished CVE record published
2026-06-16 23:45 UTCUpdated Record last modified

template cms project template cms UPGRADE

Affected: <= 2.1.1

Fixed in: newer than 2.1.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2.1.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade template-cms

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade template-cms

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: Template CMS 2.1.1 - 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-2012-4901?

template cms: upgrade to newer than 2.1.1. Exact commands for each OS are on this page.

Is CVE-2012-4901 being exploited?

CVE-2012-4901 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-2012-4901 affect?

CVE-2012-4901 affects template cms. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in Template CMS 2.1.1 and earlier allows remote attackers to inject arbitrary web script or HTML via the themes_editor parameter in an add_template action to admin/index.php.

How urgent is CVE-2012-4901?

Priority 40/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2012-4902 MEDIUM 6.8 UPGRADE Multiple cross-site request forgery (CSRF) vulnerabilities in Template CMS 2.1.1 and earlier allow remote atta

References

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