CVE-2020-26303 — HIGH (7.5)

Q: How severe is CVE-2020-26303?

CVE-2020-26303 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2020-26303?

Check the references section above for vendor advisories and patch information. Affected products include: Bevacqua Insane.

Vulnerability Description

insane is a whitelist-oriented HTML sanitizer. Versions 2.6.2 and prior contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). As of time of publication, no known patches are available.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Bevacqua	Insane	<= 2.6.2

Related Weaknesses (CWE)

CWE-1333

References

https://github.com/bevacqua/insane/issues/19Issue TrackingThird Party Advisory
https://securitylab.github.com/advisories/GHSL-2020-289-redos-insane/ExploitThird Party Advisory

FAQ

What is CVE-2020-26303?

CVE-2020-26303 is a vulnerability with a CVSS score of 7.5 (HIGH). insane is a whitelist-oriented HTML sanitizer. Versions 2.6.2 and prior contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). As of time of publi...

How severe is CVE-2020-26303?

CVE-2020-26303 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-26303?

Check the references section above for vendor advisories and patch information. Affected products include: Bevacqua Insane.