DokuWiki UTF-8 encoded spell checking cross-site scripting
| dokuwiki-spellchecker-xss (35501) |  Medium Risk |
Description:
DokuWiki is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the pell_utf8test function in lib/exe/spellcheck.php when performing spell checking on UTF-8 encoded messages and used in conjunction with Microsoft Internet Explorer. A remote attacker could exploit this vulnerability using the Content-Header to inject malicious script into a Web page which would be executed in a victim's Web browser within the security context of the hosting Web site, once the page is viewed. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials.
*CVSS:
| Base Score: | 4.2 |
| Access Vector: | Remote |
| Access Complexity: | High |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | None |
| Temporal Score: | 3.7 |
| Exploitability: | High |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of DokuWiki (2007-06-26b or later), available from the DokuWiki Web site. See References.
References:
- BugTraq Mailing List, Thu Jul 19 2007 - 09:49:24 CDT: DokuWiki suffers XSS.
- DokuWiki [splitbrain.org] Web site: DokuWiki.
- BID-24973: DokuWiki Spell_UTF8Test Function HTML Injection Vulnerability
- CVE-2007-3930: Interpretation conflict between Microsoft Internet Explorer and DocuWiki before 2007-06-26b allows remote attackers to inject arbitrary JavaScript and conduct cross-site scripting (XSS) attacks when spellchecking UTF-8 encoded messages via the spell_utf8test function in lib/exe/spellcheck.php, which triggers HTML document identification and script execution by Internet Explorer even though the Content-Type header is text/plain.
- SA26150: DokuWiki "spell_utf8test()" Cross-Site Scripting
- VUPEN/ADV-2007-2617: DokuWiki spell_utf8test() Function Client-Side Cross Site Scripting Vulnerability
Platforms Affected:
- Andreas Gohr DokuWiki prior to 2007-06-26b
Reported:
Jul 19, 2007
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.