CVE-2020-35852
Published: 23 February 2021
Summary
CVE-2020-35852 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Getgist Chatbox. Its CVSS base score is 6.1 (Medium).
Operationally, ranked at the 49.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2020-23507
Vulnerability details
Chatbox is affected by cross-site scripting (XSS). An attacker has to upload any XSS payload with SVG, XML file in Chatbox. There is no restriction on file upload in Chatbox which leads to stored XSS.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.