What’s Vulnerable › Vulnerabilities

CVE-2025-12346: MaxSite CMS HTTP Header uploads-require-maxsite.php unrestricted upload

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-10-28 · updated 2026-10-08
• Weakness: CWE-284

Description

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.

Affected products

• MaxSite CMS: through 109

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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