CVE-2021-47860
GetSimple CMS Custom JS 0.1 plugin contains a cross-site request forgery vulnerability that allows unauthenticated attackers to inject arbitrary client-side code into administrator browsers.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.24%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
GetSimple CMS Custom JS 0.1 plugin contains a cross-site request forgery vulnerability that allows unauthenticated attackers to inject arbitrary client-side code into administrator browsers. Attackers can craft a malicious website that triggers a cross-site scripting payload to execute remote code on the hosting server when an authenticated administrator visits the page.
- CVSS 4.0
- 8.5 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/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/M
- EPSS
- 0.24% probability · 15th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-352
- Affected
- get-simple/getsimplecms
- Source
- disclosure@vulncheck.com
References
- http://get-simple.infoProduct
- https://github.com/GetSimpleCMS/GetSimpleCMSProduct
- https://github.com/boku7/gsCMS-CustomJS-Csrf2Xss2RceExploit, Third Party Advisory
- https://www.exploit-db.com/exploits/49712Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/49816Exploit, Third Party Advisory, VDB Entry
- https://www.vulncheck.com/advisories/getsimple-cms-custom-js-csrf-to-xss-to-rceThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.