[Secure-testing-team] Bug#872940: dokuwiki: CVE-2017-12979: Stored XSS in xhtml.php with code block

[Salvatore Bonaccorso]

Source: dokuwiki
Version: 0.0.20160626.a-2
Severity: important
Tags: upstream patch security
Forwarded: https://github.com/splitbrain/dokuwiki/issues/2080

Hi,

the following vulnerability was published for dokuwiki.

CVE-2017-12979[0]:
| DokuWiki through 2017-02-19c has stored XSS when rendering a malicious
| language name in a code element, in /inc/parser/xhtml.php. An attacker
| can create or edit a wiki with this element to trigger JavaScript
| execution.

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2017-12979
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12979
[1] https://github.com/splitbrain/dokuwiki/issues/2080

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore