CVE-2021-40509 : ViewCommon.java in JForum2 2.7.0 allows XSS via a user signature.

ViewCommon.java in JForum2 2.7.0 allows XSS via a user signature.

Published 2021-09-04 20:15:07

Updated 2021-09-09 21:24:29

Source MITRE

View at NVD, CVE.org

Vulnerability category: Cross site scripting (XSS)

Products affected by CVE-2021-40509

Jforum » Jforum » Version: 2.7.0
cpe:2.3:a:jforum:jforum:2.7.0:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.08%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 35 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
3.5	LOW	AV:N/AC:M/Au:S/C:N/I:P/A:N	6.8	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: Single Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
5.4	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N	2.3	2.7	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: Required Scope: Changed Confidentiality: Low Integrity: Low Availability: None

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Assigned by: nvd@nist.gov (Primary)

http://seclists.org/fulldisclosure/2021/Sep/13

Full Disclosure: Re: a xss vulnerability in Jforum 2.7.0
Mailing List;Third Party Advisory
https://lists.openwall.net/full-disclosure/2021/09/03/7

full-disclosure - [FD] a xss vulnerability in Jforum 2.7.0
Exploit;Mailing List;Third Party Advisory
https://sourceforge.net/p/jforum2/code/934/

JForum2 / Code / Commit [r934]
Patch;Third Party Advisory
http://packetstormsecurity.com/files/164045/jforum-2.7.0-Cross-Site-Scripting.html

jforum 2.7.0 Cross Site Scripting ≈ Packet Storm
Third Party Advisory

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