How severe is CVE-2025-46348?

CVE-2025-46348 has a CVSS 3.x base score of 10.0, 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-2025-46348 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-46348?

CVE-2025-46348 affects Yeswiki. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-46348?

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-2025-46348 have an EU (EUVD) identifier?

Yes. CVE-2025-46348 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12664.

When was CVE-2025-46348 published?

CVE-2025-46348 was published on 2025-04-29 and last updated on 2026-06-17.

CVE-2025-46348

CVE-2025-46348 is a critical-severity vulnerability in Yeswiki with a CVSS 3.x base score of 10.0. 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-862.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-12664
Weakness: CWE-862
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, the request to commence a site backup can be performed and downloaded without authentication. The archives are created with a predictable filename, so a malicious user could create and download an archive without being authenticated. This could result in a malicious attacker making numerous requests to create archives and fill up the file system, or by downloading the archive which contains sensitive site information. This issue has been patched in version 4.5.4.

Frequently asked questions

What is CVE-2025-46348?: YesWiki is a wiki system written in PHP. Prior to version 4.5.4, the request to commence a site backup can be performed and downloaded without authentication. The archives are created with a predictable filename, so a malicious user could create and download an archive without being authenticated. This could result in a malicious attacker making numerous requests to create archives and fill up the file system, or by downloading the archive which contains sensitive site information. This issue has been patched in version 4.5.4.
How severe is CVE-2025-46348?: CVE-2025-46348 has a CVSS 3.x base score of 10.0, 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-2025-46348 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-46348?: CVE-2025-46348 affects Yeswiki. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-46348?: 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-2025-46348 have an EU (EUVD) identifier?: Yes. CVE-2025-46348 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12664.
When was CVE-2025-46348 published?: CVE-2025-46348 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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