How severe is CVE-2025-58821?

CVE-2025-58821 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-58821 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-58821?

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

Does CVE-2025-58821 have an EU (EUVD) identifier?

Yes. CVE-2025-58821 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26956.

When was CVE-2025-58821 published?

CVE-2025-58821 was published on 2025-09-05 and last updated on 2026-06-17.

CVE-2025-58821

CVE-2025-58821 is a medium-severity vulnerability with a CVSS 3.x base score of 5.9. 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 5.9)
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-26956
Weakness: CWE-79
Published: 2025-09-05
Last modified: 2026-06-17

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in wpdever WP Notification Bell wp-notification-bell allows Stored XSS.This issue affects WP Notification Bell: from n/a through <= 1.4.6.

Frequently asked questions

What is CVE-2025-58821?: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in wpdever WP Notification Bell wp-notification-bell allows Stored XSS.This issue affects WP Notification Bell: from n/a through <= 1.4.6.
How severe is CVE-2025-58821?: CVE-2025-58821 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-58821 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-58821?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-58821 have an EU (EUVD) identifier?: Yes. CVE-2025-58821 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26956.
When was CVE-2025-58821 published?: CVE-2025-58821 was published on 2025-09-05 and last updated on 2026-06-17.

References

https://patchstack.com/database/Wordpress/Plugin/wp-notification-bell/vulnerability/wordpress-wp-notification-bell-plugin-1-4-5-cross-site-scripting-xss-vulnerability?_s_id=cve

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