XPath Injection in Bscw Classic
CVE-2021-36359
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.040 (90.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.040 · newest: 0.040 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.bscw.de/en/company/ (Vendor Advisory)
- seclists.org/fulldisclosure/2021/Aug/23 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- packetstormsecurity.com/files/163988/BSCW-Server-XML-Injection.html (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-36359?
- CVE-2021-36359 is a high-severity vulnerability in Bscw Classic, classified under XML Injection (Blind XPath Injection). CVSS score: 8.8/10. Published 2021-08-30.
- How severe is CVE-2021-36359?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-36359 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.