How severe is CVE-2025-27309?

CVE-2025-27309 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-27309 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-27309?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-27309 have an EU (EUVD) identifier?

Yes. CVE-2025-27309 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-11631.

When was CVE-2025-27309 published?

CVE-2025-27309 was published on 2025-04-17 and last updated on 2026-06-17.

CVE-2025-27309

CVE-2025-27309 is a high-severity vulnerability with a CVSS 3.x base score of 7.1. 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: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-11631
Weakness: CWE-79
Published: 2025-04-17
Last modified: 2026-06-17

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Jeannot Muller flickr-slideshow-wrapper flickr-slideshow-wrapper allows Stored XSS.This issue affects flickr-slideshow-wrapper: from n/a through <= 5.4.6.

Frequently asked questions

What is CVE-2025-27309?: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Jeannot Muller flickr-slideshow-wrapper flickr-slideshow-wrapper allows Stored XSS.This issue affects flickr-slideshow-wrapper: from n/a through <= 5.4.6.
How severe is CVE-2025-27309?: CVE-2025-27309 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-27309 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-27309?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-27309 have an EU (EUVD) identifier?: Yes. CVE-2025-27309 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-11631.
When was CVE-2025-27309 published?: CVE-2025-27309 was published on 2025-04-17 and last updated on 2026-06-17.

References

https://patchstack.com/database/Wordpress/Plugin/flickr-slideshow-wrapper/vulnerability/wordpress-flickr-slideshow-wrapper-plugin-5-4-6-cross-site-scripting-xss-vulnerability?_s_id=cve

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