CVE-2023-6491: The Strong Testimonials plugin for WordPress is vulnerable to unauthorized modification of data due to an impr

Q: How do I fix CVE-2023-6491?

strong testimonials: upgrade to 3.1.13. Exact commands for each OS are on this page.

Q: Is CVE-2023-6491 being exploited?

CVE-2023-6491 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-2023-6491 affect?

CVE-2023-6491 affects strong testimonials. Severity is medium (CVSS 4.3). The Strong Testimonials plugin for WordPress is vulnerable to unauthorized modification of data due to an improper capability check on the wpmtst_save_view_sticky function in all versions up to, and including, 3.1.12. This makes it possible

Q: How urgent is CVE-2023-6491?

Priority 20/100. No elevated risk signals yet.

Routine

MEDIUM 4.3UPGRADE

CVE-2023-6491 is a medium-severity flaw (CVSS 4.3) affecting strong testimonials. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Strong Testimonials plugin for WordPress is vulnerable to unauthorized modification of data due to an improper capability check on the wpmtst_save_view_sticky function in all versions up to, and including, 3.1.12. This makes it possible for authenticated attackers, with contributor access and above, to modify favorite views.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 80%)
CISA exploited list	No
Weakness	CWE-284, CWE-862
Published	2024-06-07
Last modified	2026-06-17

Publisher (CNA): Wordfence · Vendor: wpchill

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

Am I affected?

Timeline

2024-06-07 06:15 UTCPublished CVE record published
2026-06-17 06:50 UTCUpdated Record last modified

wpchill strong testimonials UPGRADE

Affected: < 3.1.13

Fixed in: 3.1.13

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy strong-testimonials || rpm -q strong-testimonials || strong-testimonials --version

2. UPGRADE to 3.1.13 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade strong-testimonials

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade strong-testimonials

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-2023-6491?

strong testimonials: upgrade to 3.1.13. Exact commands for each OS are on this page.

Is CVE-2023-6491 being exploited?

CVE-2023-6491 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-2023-6491 affect?

CVE-2023-6491 affects strong testimonials. Severity is medium (CVSS 4.3). The Strong Testimonials plugin for WordPress is vulnerable to unauthorized modification of data due to an improper capability check on the wpmtst_save_view_sticky function in all versions up to, and including, 3.1.12. This makes it possible

How urgent is CVE-2023-6491?

Priority 20/100. No elevated risk signals yet.

Software pages

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References

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