XSS in Owasp Json-Sanitizer
CVE-2020-13973
OWASP json-sanitizer before 1.2.1 allows XSS. An attacker who controls a substring of the input JSON, and controls another substring adjacent to a SCRIPT element in which the output is embedded as JavaScript, may be able to confuse the HTML parser as to where the SCRIPT element ends, and cause non-script content to be interpreted as JavaScript.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.011 (62.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Owasp Json-sanitizer
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-13973?
- CVE-2020-13973 is a medium-severity vulnerability in Owasp Json-Sanitizer, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-06-09.
- How severe is CVE-2020-13973?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2020-13973 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.