CVE-2025-3123: wondercms Access Control Flaw

Description

A vulnerability, which was classified as critical, has been found in WonderCMS 3.5.0. Affected by this issue is the function installUpdateModuleAction of the component Theme Installation/Plugin Installation. The manipulation leads to unrestricted upload. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The vendor explains, that "[t]he philosophy has always been, admin [...] bear responsibility to not install themes/plugins from untrusted sources."

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CVSS v3.1 Score

4.7

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

Weakness Type (CWE)

CWE-284 CWE-284

CWE-434 Unrestricted Upload

Affected Products

Vendor	Product	Versions
wondercms	wondercms	All

References

Advisories & Patches

https://github.com/WonderCMS/wondercms/issues/330 https://github.com/WonderCMS/wondercms/issues/330#issue-2940381112 https://github.com/WonderCMS/wondercms/issues/330#issuecomment-2745347770

Exploits

https://github.com/WonderCMS/wondercms/issues/330 https://github.com/WonderCMS/wondercms/issues/330#issue-2940381112 https://github.com/WonderCMS/wondercms/issues/330#issuecomment-2745347770

Other References

https://vuldb.com/?ctiid.303014 https://vuldb.com/?id.303014 https://vuldb.com/?submit.525101

Frequently Asked Questions

What is CVE-2025-3123? +

A vulnerability, which was classified as critical, has been found in WonderCMS 3.5.0. Affected by this issue is the function installUpdateModuleAction of the component Theme Installation/Plugin Installation. The manipulation leads to unrestricted upload. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The vendor explains, that "[t]he philosophy has always been, admin [...] bear responsibility to not install themes/plugins from untrusted sources." It has a CVSS v3.1 base score of 4.7 (MEDIUM).

How severe is CVE-2025-3123? +

CVE-2025-3123 has a CVSS v3.1 score of 4.7 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-3123? +

CVE-2025-3123 affects products from wondercms, specifically: wondercms. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-3123? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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