CVE-2015-6736: The Quiz extension for MediaWiki allows remote attackers to cause a denial of service via regex metacharacters

Routine

MEDIUM 5.0MITIGATE

CVE-2015-6736 is a medium-severity flaw (CVSS 5.0) affecting quiz. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Quiz extension for MediaWiki allows remote attackers to cause a denial of service via regex metacharacters in a regular expression.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.7% (top 14%)
CISA exploited list	No
Weakness	CWE-17
Published	2015-09-01
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: quiz project

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

Am I affected?

Timeline

2015-09-01 14:59 UTCPublished CVE record published
2026-06-17 00:31 UTCUpdated Record last modified

quiz project quiz MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

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

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2015-6736?

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

Is CVE-2015-6736 being exploited?

CVE-2015-6736 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-2015-6736 affect?

CVE-2015-6736 affects quiz. Severity is medium (CVSS 5.0). The Quiz extension for MediaWiki allows remote attackers to cause a denial of service via regex metacharacters in a regular expression.

How urgent is CVE-2015-6736?

Priority 39/100. No elevated risk signals yet.

Related CVEs

CVE-2013-4501 MEDIUM 5.0 DOWNGRADE The default views in the Quiz module 6.x-4.x before 6.x-4.5 for Drupal allows remote attackers to obtain sensi
CVE-2013-4500 MEDIUM 4.9 DOWNGRADE The Quiz module 6.x-4.x before 6.x-4.5 for Drupal allows remote authenticated users with the "view any quiz re

References

← Back to latest CVEs