CVE-2026-126993 · Package
NO FIX YET
SiteServer SSCMS up to 7.2.2 has a flaw in the /api/v1/captcha endpoint where the Value argument is protected with inadequate encryption strength. A remote attacker can exploit it, and a public exploit has been released.
first public Nov 12, 2026 · 1 source
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Teams that run SiteServer SSCMS 7.2.2 or earlier with the captcha API reachable over the network are exposed. The sources do not say which configurations are affected, so treat any reachable instance as in scope until the vendor responds.
Not affected if sscms-above-7.2.2
Who cares self-hosted, siteserver, sscms
7.2.2 or earlier./api/v1/captcha route in your deployment.No fix yet, per the sources.
A security flaw has been discovered in SiteServer SSCMS up to 7.2.2. Impacted is an unknown function of the file /api/v1/captcha. Performing a manipulation of the argument Value results in inadequate encryption strength. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
This page as .md · .json · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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