NOTE: This bug report is for Confluence Server. Using Confluence Cloud? See the corresponding bug report.

      We have identified and fixed a cross-site scripting (XSS) vulnerability that affect Confluence instances, including publicly available instances (that is, Internet-facing servers). XSS vulnerabilities allow an attacker to embed their own JavaScript into a Confluence page. All supported versions of Confluence are affected.

      More details are available in the advisory at https://confluence.atlassian.com/display/DOC/Confluence+Security+Advisory+2012-09-11

      Patch for versions older than 4.1.9

      Attached is a patch that will fix this XSS issue for versions of Confluence older than 4.1.9. This patch has also been tested against Confluence 3.5.16, and should work for all Confluence 3.5.x releases. However, as with any patch, this should be tested thoroughly first, and initially monitored after being installed in production.

      To install:

      1. Download the attached zip file
      2. Shutdown Confluence
      3. Move the zip file <installation-directory>/confluence/WEB-INF/classes
      4. Extract the zip file
      5. Verify that the file <installation-directory>/confluence/WEB-INF/classes/com/atlassian/confluence/servlet/ConfluenceVelocityServlet.class exists
      6. Restart Confluence for the change to take effect

      You can read more about applying patches here: https://confluence.atlassian.com/display/DOC/Installing+Patched+Class+Files

          Form Name

            [CONFSERVER-26366] Cross Site Scripting Vulnerability

            Katherine Yabut made changes -
            Workflow Original: JAC Bug Workflow v3 [ 2890148 ] New: CONFSERVER Bug Workflow v4 [ 2982518 ]
            Owen made changes -
            Workflow Original: JAC Bug Workflow v2 [ 2803836 ] New: JAC Bug Workflow v3 [ 2890148 ]
            Status Original: Resolved [ 5 ] New: Closed [ 6 ]
            Owen made changes -
            Workflow Original: JAC Bug Workflow [ 2737863 ] New: JAC Bug Workflow v2 [ 2803836 ]
            Owen made changes -
            Workflow Original: Confluence Workflow - Public Facing - Restricted v5 - TEMP [ 2389264 ] New: JAC Bug Workflow [ 2737863 ]
            David Black made changes -
            Labels Original: advisory cvss-high security New: advisory advisory-released cvss-high security
            Katherine Yabut made changes -
            Workflow Original: Confluence Workflow - Public Facing - Restricted v5 [ 2266771 ] New: Confluence Workflow - Public Facing - Restricted v5 - TEMP [ 2389264 ]
            Katherine Yabut made changes -
            Workflow Original: Confluence Workflow - Public Facing - Restricted v5.1 - TEMP [ 2210406 ] New: Confluence Workflow - Public Facing - Restricted v5 [ 2266771 ]
            Katherine Yabut made changes -
            Workflow Original: Confluence Workflow - Public Facing - Restricted v5 - TEMP [ 2196577 ] New: Confluence Workflow - Public Facing - Restricted v5.1 - TEMP [ 2210406 ]
            Katherine Yabut made changes -
            Workflow Original: Confluence Workflow - Public Facing - Restricted v5 [ 1934724 ] New: Confluence Workflow - Public Facing - Restricted v5 - TEMP [ 2196577 ]
            Katherine Yabut made changes -
            Workflow Original: Confluence Workflow - Public Facing - Restricted v3 [ 1719656 ] New: Confluence Workflow - Public Facing - Restricted v5 [ 1934724 ]

              vosipov VitalyA
              vosipov VitalyA
              Affected customers:
              0 This affects my team
              Watchers:
              9 Start watching this issue

                Created:
                Updated:
                Resolved: