CVE-2025-12346

A vulnerability was detected in MaxSite CMS up to 109. This vulnerability affects unknown code of the file application/maxsite/admin/plugins/auto_post/uploads-require-maxsite.php of the component HTTP Header Handler. Performing manipulation of the argument X-Requested-FileName/X-Requested-FileUpDir results in unrestricted upload. Remote exploitation of the attack is possible. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS 4.0

2.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

CVSS 3.1

8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.4% chance of exploitation in the next 30 days; higher than 33% of CVEs (scores of 2026-10-25)

CWEs

CWE-434, CWE-284

Published

2025-10-28

Modified

2026-10-08

Record from

the NVD, synced 2026-10-19

Affected

• max-3000:maxsite_cms

References

• https://note-hxlab.wetolink.com/share/8QmDZCddHvyR
• https://vuldb.com/?ctiid.330136
• https://vuldb.com/?id.330136
• https://vuldb.com/?submit.674551

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