How severe is CVE-2025-46346?

CVE-2025-46346 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-2025-46346 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-46346?

CVE-2025-46346 affects Yeswiki. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-46346?

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

Does CVE-2025-46346 have an EU (EUVD) identifier?

Yes. CVE-2025-46346 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12628.

When was CVE-2025-46346 published?

CVE-2025-46346 was published on 2025-04-29 and last updated on 2026-06-17.

CVE-2025-46346

CVE-2025-46346 is a medium-severity vulnerability in Yeswiki 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)
CVSS v4: 6.3
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-12628
Weakness: CWE-79
Affected product: Yeswiki
Published: 2025-04-29
Last modified: 2026-06-17

Description

YesWiki is a wiki system written in PHP. Prior to version 4.5.4, a stored cross-site scripting (XSS) vulnerability was discovered in the application’s comments feature. This issue allows a malicious actor to inject JavaScript payloads that are stored and later executed in the browser of any user viewing the affected comment. The XSS occurs because the application fails to properly sanitize or encode user input submitted to the comments. Notably, the application sanitizes or does not allow execution of `<script>` tags, but does not account for payloads obfuscated using JavaScript block comments like `/* JavaScriptPayload */`. This issue has been patched in version 4.5.4.

Frequently asked questions

What is CVE-2025-46346?: YesWiki is a wiki system written in PHP. Prior to version 4.5.4, a stored cross-site scripting (XSS) vulnerability was discovered in the application’s comments feature. This issue allows a malicious actor to inject JavaScript payloads that are stored and later executed in the browser of any user viewing the affected comment. The XSS occurs because the application fails to properly sanitize or encode user input submitted to the comments. Notably, the application sanitizes or does not allow execution of `<script>` tags, but does not account for payloads obfuscated using JavaScript block comments like `/* JavaScriptPayload */`. This issue has been patched in version 4.5.4.
How severe is CVE-2025-46346?: CVE-2025-46346 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-2025-46346 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-46346?: CVE-2025-46346 affects Yeswiki. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-46346?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-46346 have an EU (EUVD) identifier?: Yes. CVE-2025-46346 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12628.
When was CVE-2025-46346 published?: CVE-2025-46346 was published on 2025-04-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:yeswiki:yeswiki:*:*:*:*:*:*:*:*

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