[Secure-testing-team] Bug#872941: dokuwiki: CVE-2017-12980: Stored XSS in xhtml.php with RSS/Atom feed

[Salvatore Bonaccorso]

Source: dokuwiki
Version: 0.0.20160626.a-2
Severity: important
Tags: patch security upstream
Forwarded: https://github.com/splitbrain/dokuwiki/issues/2081

Hi,

the following vulnerability was published for dokuwiki.

CVE-2017-12980[0]:
| DokuWiki through 2017-02-19c has stored XSS when rendering a malicious
| RSS or Atom feed, in /inc/parser/xhtml.php. An attacker can create or
| edit a wiki that uses RSS or Atom data from an attacker-controlled
| server to trigger JavaScript execution. The JavaScript can be in an
| author field, as demonstrated by the dc:creator element.

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-2017-12980
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12980
[1] https://github.com/splitbrain/dokuwiki/issues/2081

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore