CVE-2021-36359

Name: CVE-2021-36359
Creator: NVD / NIST
Published: 2021-08-30T05:15:07.157+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 3.98%

Last modified Jun 17, 2026

CVE-2021-36359 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. OrbiTeam BSCW Classic before 7.4.3 allows exportpdf authenticated remote code execution (RCE) via XML tag injection because reportlab\platypus\paraparser.py (reached via bscw.cgi op=_editfolder.EditFolder) calls eval on attacker-supplied Python code. This is fixed in 5.0.12, 5.1.10, 5.2.4, 7.3.3, and 7.4.3.. EPSS estimates a 3.98% chance of exploitation in the next 30 days.

Description

OrbiTeam BSCW Classic before 7.4.3 allows exportpdf authenticated remote code execution (RCE) via XML tag injection because reportlab\platypus\paraparser.py (reached via bscw.cgi op=_editfolder.EditFolder) calls eval on attacker-supplied Python code. This is fixed in 5.0.12, 5.1.10, 5.2.4, 7.3.3, and 7.4.3.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

3.98%

89.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-91

Affected Software

Vendor	Product	Versions
Bscw	Bscw Classic	< 5.0.12
Bscw	Bscw Classic	>= 5.1.0, < 5.1.10
Bscw	Bscw Classic	>= 5.2.0, < 5.2.4
Bscw	Bscw Classic	>= 7.3.0, < 7.3.3
Bscw	Bscw Classic	>= 7.4.0, < 7.4.3

References

http://packetstormsecurity.com/files/163988/BSCW-Server-XML-Injection.htmlExploit, Third Party Advisory
http://seclists.org/fulldisclosure/2021/Aug/23Exploit, Mailing List, Third Party Advisory
https://www.bscw.de/en/company/Vendor Advisory
http://packetstormsecurity.com/files/163988/BSCW-Server-XML-Injection.htmlExploit, Third Party Advisory
http://seclists.org/fulldisclosure/2021/Aug/23Exploit, Mailing List, Third Party Advisory
https://www.bscw.de/en/company/Vendor Advisory

Timeline

Published: Aug 30, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-36359?

How severe is CVE-2021-36359?

CVE-2021-36359 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 3.98% probability of exploitation in the next 30 days.

How do I fix CVE-2021-36359?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-36359?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST