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Vulnerabilities

Vulnerability · 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

Published Sep 5, 2025 · catalog updated May 12, 2026 · WP Notification Bell

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-58821. EPSS is 0.23%. Act only if a listed version of WP Notification Bell is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.9
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.23%
Remediation
Advisory link
Affected products
vendor wpdever WP Notification Bell 0 ≤1.4.6

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor wpdever WP Notification Bell 0 ≤1.4.60 ≤1.4.6

How to fix CVE-2025-58821

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-58821. EPSS is 0.23%. Act only if a listed version of WP Notification Bell is installed.

Which versions are affected?

Compare what you have installed with wpdever WP Notification Bell 0 ≤1.4.6 0 ≤1.4.6. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.23%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 5, 2025 · EUVD

    Detected

    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.

  2. May 12, 2026 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2025-58821

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-58821

    30-day exploitation probability 0.23%

    first.org
  • EUVDVulnerability recordEUVD-2025-26956

    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.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 21, 2026
  • EUVDOct 21, 2026