How severe is CVE-2026-5191?

CVE-2026-5191 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-5191 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-5191?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-5191 have an EU (EUVD) identifier?

Yes. CVE-2026-5191 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33901.

When was CVE-2026-5191 published?

CVE-2026-5191 was published on 2026-06-02 and last updated on 2026-06-17.

CVE-2026-5191

CVE-2026-5191 is a medium-severity vulnerability with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-33901
Weakness: CWE-79
Published: 2026-06-02
Last modified: 2026-06-17

Description

The Tiled Gallery Carousel Without JetPack plugin for WordPress is vulnerable to stored cross-site scripting via the 'data-image-title' parameter in all versions up to, and including, 3.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Frequently asked questions

What is CVE-2026-5191?: The Tiled Gallery Carousel Without JetPack plugin for WordPress is vulnerable to stored cross-site scripting via the 'data-image-title' parameter in all versions up to, and including, 3.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
How severe is CVE-2026-5191?: CVE-2026-5191 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-5191 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-5191?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-5191 have an EU (EUVD) identifier?: Yes. CVE-2026-5191 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33901.
When was CVE-2026-5191 published?: CVE-2026-5191 was published on 2026-06-02 and last updated on 2026-06-17.

References

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

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CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
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CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

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