How severe is CVE-2025-46347?

CVE-2025-46347 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-46347 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-46347?

CVE-2025-46347 affects Yeswiki. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-46347?

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

Does CVE-2025-46347 have an EU (EUVD) identifier?

Yes. CVE-2025-46347 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12614.

When was CVE-2025-46347 published?

CVE-2025-46347 was published on 2025-04-29 and last updated on 2026-06-17.

CVE-2025-46347

CVE-2025-46347 is a critical-severity vulnerability in Yeswiki with a CVSS 3.x base score of 9.8. 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-116.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 5.8
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-12614
Weakness: CWE-116
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, YesWiki vulnerable to remote code execution. An arbitrary file write can be used to write a file with a PHP extension, which then can be browsed to in order to execute arbitrary code on the server, resulting in a full compromise of the server. This could potentially be performed unwittingly by a user. This issue has been patched in version 4.5.4.

Frequently asked questions

What is CVE-2025-46347?: YesWiki is a wiki system written in PHP. Prior to version 4.5.4, YesWiki vulnerable to remote code execution. An arbitrary file write can be used to write a file with a PHP extension, which then can be browsed to in order to execute arbitrary code on the server, resulting in a full compromise of the server. This could potentially be performed unwittingly by a user. This issue has been patched in version 4.5.4.
How severe is CVE-2025-46347?: CVE-2025-46347 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-46347 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-46347?: CVE-2025-46347 affects Yeswiki. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-46347?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-46347 have an EU (EUVD) identifier?: Yes. CVE-2025-46347 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12614.
When was CVE-2025-46347 published?: CVE-2025-46347 was published on 2025-04-29 and last updated on 2026-06-17.

References

Affected products (1)

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

More vulnerabilities in Yeswiki

CVE-2025-46348 — Critical (CVSS 10.0): YesWiki is a wiki system written in PHP. Prior to version 4.5.4, the request to commence a site backup can be performed…
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CVE-2025-31131 — High (CVSS 8.6): YesWiki is a wiki system written in PHP. The squelette parameter is vulnerable to path traversal attacks, enabling read…
CVE-2025-46349 — High (CVSS 7.6): YesWiki is a wiki system written in PHP. Prior to version 4.5.4, YesWiki is vulnerable to reflected XSS in the file…
CVE-2025-24018 — High (CVSS 7.6): YesWiki is a wiki system written in PHP. In versions up to and including 4.4.5, it is possible for an authenticated…

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Other CWE-116 vulnerabilities

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