How severe is CVE-2025-26734?

CVE-2025-26734 has a CVSS 3.x base score of 6.5, 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 low.

Is CVE-2025-26734 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-26734?

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

Does CVE-2025-26734 have an EU (EUVD) identifier?

Yes. CVE-2025-26734 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-8420.

When was CVE-2025-26734 published?

CVE-2025-26734 was published on 2025-03-27 and last updated on 2026-06-17.

CVE-2025-26734

CVE-2025-26734 is a medium-severity vulnerability with a CVSS 3.x base score of 6.5. 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 6.5)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-8420
Weakness: CWE-79
Published: 2025-03-27
Last modified: 2026-06-17

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in peregrinethemes Hester hester allows Stored XSS.This issue affects Hester: from n/a through <= 1.1.10.

Frequently asked questions

What is CVE-2025-26734?: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in peregrinethemes Hester hester allows Stored XSS.This issue affects Hester: from n/a through <= 1.1.10.
How severe is CVE-2025-26734?: CVE-2025-26734 has a CVSS 3.x base score of 6.5, 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 low.
Is CVE-2025-26734 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-26734?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-26734 have an EU (EUVD) identifier?: Yes. CVE-2025-26734 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-8420.
When was CVE-2025-26734 published?: CVE-2025-26734 was published on 2025-03-27 and last updated on 2026-06-17.

References

https://patchstack.com/database/Wordpress/Theme/hester/vulnerability/wordpress-hester-plugin-1-1-10-cross-site-scripting-xss-vulnerability?_s_id=cve

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