Vulnerability Details : CVE-2021-37746
textview_uri_security_check in textview.c in Claws Mail before 3.18.0, and Sylpheed through 3.7.0, does not have sufficient link checks before accepting a click.
Vulnerability category: Open redirect
Exploit prediction scoring system (EPSS) score for CVE-2021-37746
Probability of exploitation activity in the next 30 days: 0.09%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 35 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-37746
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
5.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:N |
8.6
|
4.9
|
[email protected] |
|
6.1
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
2.8
|
2.7
|
[email protected] |
CWE ids for CVE-2021-37746
-
A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks.Assigned by: [email protected] (Primary)
References for CVE-2021-37746
-
https://claws-mail.org/download.php?file=releases/claws-mail-3.18.0.tar.xz
Patch;Vendor Advisory
-
https://lists.fedoraproject.org/archives/list/[email protected]/message/RCJXHUSYHGVBSH2ULD7HNXLM7QNRECZ6/
Mailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/[email protected]/message/L2QNUIWASJLPUZZKWICGCEGYJZCQE7NH/
Mailing List;Third Party Advisory
-
https://sylpheed.sraoss.jp/sylpheed/v3.7/sylpheed-3.7.0.tar.xz
Patch;Third Party Advisory
-
https://git.claws-mail.org/?p=claws.git;a=commit;h=ac286a71ed78429e16c612161251b9ea90ccd431
Patch;Vendor Advisory
Products affected by CVE-2021-37746
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:a:claws-mail:claws-mail:*:*:*:*:*:*:*:*
- cpe:2.3:a:sylpheed_project:sylpheed:*:*:*:*:*:*:*:*