CVE-2021-33926 — HIGH (8.8)

Vulnerability Description

An issue in Plone CMS v. 5.2.4, 5.2.3, 5.2.2, 5.2.1, 5.2.0, 5.1rc2, 5.1rc1, 5.1b4, 5.1b3, 5.1b2, 5.1a2, 5.1a1, 5.1.7, 5.1.6, 5.1.5, 5.1.4, 5.1.2, 5.1.1 5.1, 5.0rc3, 5.0rc2, 5.0rc1, 5.0.9, 5.0.8, 5.0.7, 5.0.6, 5.0.5, 5.0.4, 5.0.3, 5.0.2, 5.0.10, 5.0.1, 5.0, 4.3.9, 4.3.8, 4.3.7, 4.3.6, 4.3.5, 4.3.4, 4.3.3, 4.3.20, 4 allows attacker to access sensitive information via the RSS feed protlet.

CVSS Score

8.8

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Plone	Plone	4.3

Related Weaknesses (CWE)

CWE-918

References

https://github.com/s-kustm/Subodh/blob/master/Plone%205.2.4%20Vulnerable%20to%20ExploitThird Party Advisory
https://plone.org/security/hotfix/20210518Release Notes
https://plone.org/security/hotfix/20210518/blind-ssrf-via-feedparser-accessing-aVendor Advisory
https://github.com/s-kustm/Subodh/blob/master/Plone%205.2.4%20Vulnerable%20to%20ExploitThird Party Advisory
https://plone.org/security/hotfix/20210518Release Notes
https://plone.org/security/hotfix/20210518/blind-ssrf-via-feedparser-accessing-aVendor Advisory

FAQ

What is CVE-2021-33926?

CVE-2021-33926 is a vulnerability with a CVSS score of 8.8 (HIGH). An issue in Plone CMS v. 5.2.4, 5.2.3, 5.2.2, 5.2.1, 5.2.0, 5.1rc2, 5.1rc1, 5.1b4, 5.1b3, 5.1b2, 5.1a2, 5.1a1, 5.1.7, 5.1.6, 5.1.5, 5.1.4, 5.1.2, 5.1.1 5.1, 5.0rc3, 5.0rc2, 5.0rc1, 5.0.9, 5.0.8, 5.0.7...

How severe is CVE-2021-33926?

CVE-2021-33926 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-33926?

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