CVE-2026-120203: high-severity vulnerability in ShowDoc
ShowDoc 2.8.14 before 3.9.6 Code Injection via Mock Templates
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.4%
ShowDoc 2.8.14 before 3.9.6 contains a code injection vulnerability in its Mock feature that allows authenticated users to execute shell commands through mockjs templates. Attackers can store a template via MockController::add with escaped parentheses that mockjs evaluates with eval(), then trigger it through MockController::infoByKey to run commands, as root in the official Docker image.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
ShowDoc · ShowDocRelated CVEs — ShowDoc
In the same product, most dangerous first.
References
https://gist.github.com/LioTree/028af150fd991cf9924dd2c7d5912e54https://github.com/star7th/showdochttps://github.com/star7th/showdoc/blob/v3.9.5/mock/index.js#L42https://github.com/star7th/showdoc/commit/5a2087a3f408f5266f61e9e2fb98845ef4788288https://www.vulncheck.com/advisories/showdoc-2.8.14-before-3.9.6-code-injection-via-mock-templates