CVE-2021-26929
Global infos:
An XSS issue was discovered in Horde Groupware Webmail Edition through 5.2.22 (where the Horde_Text_Filter library before 2.3.7 is used). The attacker can send a plain text e-mail message, with JavaScript encoded as a link or email that is mishandled by preProcess in Text2html.php, because bespoke use of \x00\x00\x00 and \x01\x01\x01 interferes with XSS defenses.
CVE Status: Modified
References:
Metrics:
| Attribute | Value |
|---|---|
| Attack Complexity | LOW |
| Attack Vector | NETWORK |
| Availability Impact | NONE |
| Base Score | 6.1 |
| Base Severity | MEDIUM |
| Confidentiality Impact | LOW |
| Integrity Impact | LOW |
| Privileges Required | NONE |
| Scope | CHANGED |
| User Interaction | REQUIRED |
| Vector String | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| Exploitability Score | 2.8 |
| Impact Score | 2.7 |
| Source | [email protected] |
| Type | Primary |