CVE-2011-5108: Cross-site scripting (XSS) vulnerability in config.php in AdaptCMS 2.0.0 and 2.0.1 allows remote attackers to

Routine

MEDIUM 4.3DOWNGRADE

CVE-2011-5108 is a medium-severity flaw (CVSS 4.3) affecting adaptcms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in config.php in AdaptCMS 2.0.0 and 2.0.1 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

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	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-79
Published	2012-08-23
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: adaptcms

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

Am I affected?

Timeline

2012-08-23 20:55 UTCPublished CVE record published
2026-06-16 23:35 UTCUpdated Record last modified

adaptcms adaptcms DOWNGRADE

Affected: 2.0.0 · 2.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.0.0 (Debian / Ubuntu)

apt-cache madison adaptcms sudo apt install adaptcms=<VERSION_BEFORE_2.0.0> sudo apt-mark hold adaptcms

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

dnf --showduplicates list adaptcms sudo dnf downgrade adaptcms-<VERSION_BEFORE_2.0.0> sudo dnf versionlock add adaptcms

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: AdaptCMS 2.0 - 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-2011-5108?

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

Is CVE-2011-5108 being exploited?

CVE-2011-5108 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-2011-5108 affect?

CVE-2011-5108 affects adaptcms. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in config.php in AdaptCMS 2.0.0 and 2.0.1 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

How urgent is CVE-2011-5108?

Priority 39/100. Public exploit reference

Software pages

PHP vulnerabilities

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References

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