CVE-2020-36955

Grav CMS 1.6.30 with Admin Plugin 1.9.18 contains a persistent cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts through the page title field. Attackers can create a new page with a malicious script in the title, which will be executed when the page is viewed in the admin panel or on the site.

CVSS v4.0

5.1 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/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

CVSS v3.1

6.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

EPSS

0.59% chance of exploitation in the next 30 days, 46th percentile

Published

2026-01-26

Updated

2026-03-05

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/49264

References

• CVE Record
• NVD entry

Related

• CVE-2020-36954
• CVE-2020-36956
• CVE-2020-36953
• CVE-2020-36957
• CVE-2020-36952
• CVE-2020-36958