CVE-2015-8233: Cross-site scripting (XSS) vulnerability in the MAYO theme 7.x-1.x before 7.x-1.4 and 7.x-2.x before 7.x-2.6 f

Routine

LOW 2.6DOWNGRADE

CVE-2015-8233 is a low-severity flaw (CVSS 2.6) affecting mayo. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in the MAYO theme 7.x-1.x before 7.x-1.4 and 7.x-2.x before 7.x-2.6 for Drupal allows remote administrators with the "Administer themes" permission to inject arbitrary web script or HTML via unspecified vectors related to theme settings.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	2.6 (Low)
EPSS exploit chance	1.3% (top 29%)
CISA exploited list	No
Weakness	CWE-79
Published	2015-11-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: mayo project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2015-11-17 15:59 UTCPublished CVE record published
2026-06-17 00:34 UTCUpdated Record last modified

mayo project mayo DOWNGRADE

Affected: 7.x-1.0 · 7.x-1.1 · 7.x-1.2 · 7.x-1.3 · 7.x-2.0 · 7.x-2.0 alpha1 · 7.x-2.0 alpha2 · 7.x-2.0 alpha3

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.x-1.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 7.x-1.0 (Debian / Ubuntu)

apt-cache madison mayo sudo apt install mayo=<VERSION_BEFORE_7.x-1.0> sudo apt-mark hold mayo

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

dnf --showduplicates list mayo sudo dnf downgrade mayo-<VERSION_BEFORE_7.x-1.0> sudo dnf versionlock add mayo

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-2015-8233?

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

Is CVE-2015-8233 being exploited?

CVE-2015-8233 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-2015-8233 affect?

CVE-2015-8233 affects mayo. Severity is low (CVSS 2.6). Cross-site scripting (XSS) vulnerability in the MAYO theme 7.x-1.x before 7.x-1.4 and 7.x-2.x before 7.x-2.6 for Drupal allows remote administrators with the "Administer themes" permission to inject arbitrary web script or HTML via unspecif

How urgent is CVE-2015-8233?

Priority 27/100. No elevated risk signals yet.

Software pages

Drupal vulnerabilities

Related CVEs

CVE-2014-8079 MEDIUM 4.0 DOWNGRADE Cross-site scripting (XSS) vulnerability in the MAYO theme 7.x-1.x before 7.x-1.3 for Drupal allows remote aut

References

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