CVE-2015-9361: The Related Posts plugin before 1.8.2 for WordPress has XSS via add_query_arg() and remove_query_arg().

Q: How do I fix CVE-2015-9361?

related posts: upgrade to 1.8.2. Exact commands for each OS are on this page.

Q: Is CVE-2015-9361 being exploited?

CVE-2015-9361 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-2015-9361 affect?

CVE-2015-9361 affects related posts. Severity is medium (CVSS 6.1). The Related Posts plugin before 1.8.2 for WordPress has XSS via add_query_arg() and remove_query_arg().

Q: How urgent is CVE-2015-9361?

Priority 37/100. No elevated risk signals yet.

Routine

MEDIUM 6.1UPGRADE

CVE-2015-9361 is a medium-severity flaw (CVSS 6.1) affecting related posts. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Related Posts plugin before 1.8.2 for WordPress has XSS via add_query_arg() and remove_query_arg().

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.0% (top 37%)
CISA exploited list	No
Weakness	CWE-79
Published	2019-08-28
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: never5

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

Am I affected?

Timeline

2019-08-28 12:15 UTCPublished CVE record published
2026-06-17 00:36 UTCUpdated Record last modified

never5 related posts UPGRADE

Affected: < 1.8.2

Fixed in: 1.8.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy related-posts || rpm -q related-posts || related-posts --version

2. UPGRADE to 1.8.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade related-posts

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade related-posts

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2015-9361?

related posts: upgrade to 1.8.2. Exact commands for each OS are on this page.

Is CVE-2015-9361 being exploited?

CVE-2015-9361 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-2015-9361 affect?

CVE-2015-9361 affects related posts. Severity is medium (CVSS 6.1). The Related Posts plugin before 1.8.2 for WordPress has XSS via add_query_arg() and remove_query_arg().

How urgent is CVE-2015-9361?

Priority 37/100. No elevated risk signals yet.

Software pages

WordPress vulnerabilities

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References

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