Vulnerability in Prototypejs Prototype
CVE-2020-27511
An issue was discovered in the stripTags and unescapeHTML components in Prototype 1.7.3 where an attacker can cause a Regular Expression Denial of Service (ReDOS) through stripping crafted HTML tags.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.025 (84.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000
Affected products
- Prototypejs Prototype — versions 1.7.3
References
- prototypejs.org/ (Vendor Advisory)
- github.com/prototypejs/prototype/blob/dee2f7d8611248abce81287e1be4156011953c90/… (Exploit, Third Party Advisory)
- github.com/yetingli/PoCs/blob/main/CVE-2020-27511/Prototype.md (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-27511?
- CVE-2020-27511 is a high-severity vulnerability in Prototypejs Prototype. CVSS score: 7.5/10. Published 2021-06-21.
- How severe is CVE-2020-27511?
- High severity. CVSS v3 base score is 7.5 out of 10.