RCE in Xwiki
CVE-2020-15171
In XWiki before versions 11.10.5 or 12.2.1, any user with SCRIPT right (EDIT right before XWiki 7.4) can gain access to the application server Servlet context which contains tools allowing to instantiate arbitrary Java objects and invoke methods that may lead to arbitrary code execution. The only workaround is to give SCRIPT right only to trusted users.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.013 (70.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Xwiki
- Xwiki Xwiki-Platform — versions <11.10.5, >=12.0.0, <12.2.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/xwiki/xwiki-platform/security/advisories/GHSA-7qw5-pqhc-xm4g (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-15171?
- CVE-2020-15171 is a medium-severity vulnerability in Xwiki, classified under Code Injection. CVSS score: 6.6/10. Published 2020-09-10.
- How severe is CVE-2020-15171?
- Medium severity. CVSS v3 base score is 6.6 out of 10.
- Is CVE-2020-15171 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.