cbcvebase.
CVE-2026-29202
published 2026-05-08

CVE-2026-29202: Insufficient input validation of the `plugin` parameter of the `create_user` plugin allows arbitrary Perl code execution on behalf of the already authenticated…

PriorityP261high8.8CVSS 3.1
AVNACLPRLUINSUCHIHAH
EPSS
0.83%
53.0th percentile
Insufficient input validation of the `plugin` parameter of the `create_user` plugin allows arbitrary Perl code execution on behalf of the already authenticated account's system user.

Affected

12 ranges
VendorProductVersion rangeFixed in
webproscpanel>= 11.102.0.0 < 11.102.0.4111.102.0.41
webproscpanel>= 11.110.0.0 < 11.110.0.11711.110.0.117
webproscpanel>= 11.118.0.0 < 11.118.0.6611.118.0.66
webproscpanel>= 11.124.0.0 < 11.124.0.3711.124.0.37
webproscpanel>= 11.126.0.0 < 11.126.0.5811.126.0.58
webproscpanel>= 11.130.0.0 < 11.130.0.2211.130.0.22
webproscpanel>= 11.132.0.0 < 11.132.0.3111.132.0.31
webproscpanel>= 11.134.0.0 < 11.134.0.2511.134.0.25
webproscpanel>= 11.136.0.0 < 11.136.0.911.136.0.9
webproscpanel>= 11.86.0.0 < 11.86.0.4311.86.0.43
webproscpanel>= 11.94.0.0 < 11.94.0.3011.94.0.30
webproswp_squared>= 11.136.1.0 < 11.136.1.1111.136.1.11

Detection & IOCsextracted from sources · hover to see the quote

  • Monitor for exploitation of the `plugin` parameter in the `create_user` API call, which allows injection of arbitrary Perl code executed as the authenticated account's system user.
  • Alert on cPanel/WHM API calls to `create_user` where the `plugin` parameter contains Perl code constructs (e.g., semicolons, backticks, system(), exec(), or eval() patterns) indicative of code injection attempts.
  • ·Exploitation requires prior authentication; the injected Perl code runs as the authenticated account's system user, not necessarily root. Scope of impact depends on the privilege level of the authenticated user.
  • ·No evidence of in-the-wild exploitation reported for CVE-2026-29202 at time of disclosure.

CVSS provenance

nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv4.05.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/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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