TI-2020-16684 Aliases CVE-2020-27511 GHSA-6269-grv3-jc94

An issue was discovered in the stripTags and unescapeHTML components in Prototype 1.7.3…

LOW 39Published 2021-06-21 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.03338 88th percentileScored 2026-11-07

Public exploit Yes 2 exploit referencesTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:prototypejs:prototype:1.7.3:::::::*	1.7.3	Vulnerable	Prototypejs

cpe:2.3:a:prototypejs:prototype:1.7.3:*:*:*:*:*:*:* Versions 1.7.3 Vulnerable ·Prototypejs

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-27511
2026-10-03 Alias added: GHSA-6269-grv3-jc94

References

Exploit 2

Advisory 1

http://prototypejs.org/

TI-2008-06908 Unspecified vulnerability in Prototype JavaScript framework (prototypejs) before 1.6.0.2… CVSS 2.0HIGH 7.5
TI-2020-06465 Prototype 1.6.0.1 allows remote authenticated users to forge ticket creation (on behalf… CVSS 3.1MEDIUM 4.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences