CVE-2011-4938: Multiple cross-site scripting (XSS) vulnerabilities in Ariadne 2.7.6 allow remote attackers to inject arbitrar

This month

MEDIUM 6.1DOWNGRADE

CVE-2011-4938 is a medium-severity flaw (CVSS 6.1) affecting ariadne. 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 Ariadne 2.7.6 allow remote attackers to inject arbitrary web script or HTML via the PATH_INFO parameter to (1) index.php and (2) loader.php.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.2% (top 33%)
CISA exploited list	No
Weakness	CWE-79
Published	2020-02-11
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: muze

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

Am I affected?

Timeline

2020-02-11 21:15 UTCPublished CVE record published
2026-06-16 23:35 UTCUpdated Record last modified

muze ariadne DOWNGRADE

Affected: 2.7.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.7.6

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.7.6 (Debian / Ubuntu)

apt-cache madison ariadne sudo apt install ariadne=<VERSION_BEFORE_2.7.6> sudo apt-mark hold ariadne

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

dnf --showduplicates list ariadne sudo dnf downgrade ariadne-<VERSION_BEFORE_2.7.6> sudo dnf versionlock add ariadne

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.

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-2011-4938?

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

Is CVE-2011-4938 being exploited?

CVE-2011-4938 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-2011-4938 affect?

CVE-2011-4938 affects ariadne. Severity is medium (CVSS 6.1). Multiple cross-site scripting (XSS) vulnerabilities in Ariadne 2.7.6 allow remote attackers to inject arbitrary web script or HTML via the PATH_INFO parameter to (1) index.php and (2) loader.php.

How urgent is CVE-2011-4938?

Priority 43/100. Public exploit reference

Software pages

PHP vulnerabilities

References

← Back to latest CVEs