Vulnerability · Published Feb 4, 2022 · Assigned by GitHub_M
CVE-2021-32732Cross-Site Request Forgery in xwiki-platform
High 7.5
In plain English
A high-severity cross-site request forgery in xwiki-platform from xwiki. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
### Impact It's possible to know if a user has or not an account in a wiki related to an email address, and which username(s) is actually tied to that email by forging a request to the Forgot username page. Note that since this page does not have a CSRF check it's quite easy to perform a lot of those requests. ### Patches This issue has been patched in XWiki 12.10.5 and 13.2RC1. Two different patches are provided: - a first one to fix the CSRF problem - a more complex one that now relies on sending an email for the Forgot username process. ### Workarounds It's possible to fix the problem without uprading by editing the ForgotUsername page in version below 13.x, to use the following code: https://github.com/xwiki/xwiki-platform/blob/69548c0320cbd772540cf4668743e69f879812cf/xwiki-platform-core/xwiki-platform-administration/xwiki-platform-administration-ui/src/main/resources/XWiki/ForgotUsername.xml#L39-L123 In version after 13.x it's also possible to edit manually the forgotusername.vm file, but it's really encouraged to upgrade the version here. ### References * https://jira.xwiki.org/browse/XWIKI-18384 * https://jira.xwiki.org/browse/XWIKI-18408 ### For more information If you have any questions or comments about this advisory: * Open an issue in [Jira XWiki](https://jira.xwiki.org) * Email us at [security ML](mailto:security@xwiki.org)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.xwiki.platform:xwiki-platform-administration-ui | 12.10.5 | GHSA-vh5c-jqfg-mhrh |
| Maven | org.xwiki.platform:xwiki-platform-administration-ui | 13.2RC1 | GHSA-vh5c-jqfg-mhrh |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| xwiki | xwiki-platform | < 12.10.5 >= 13.0, < 13.2RC1 |
Weakness: CWE-352 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-vh5c-jqfg-mhrh x_refsource_CONFIRM
- https://github.com/xwiki/xwiki-platform/commit/69548c0320cbd772540cf4668743e69f879812cf x_refsource_MISC
- https://github.com/xwiki/xwiki-platform/commit/f0440dfcbba705e03f7565cd88893dde57ca3fa8 x_refsource_MISC
- https://jira.xwiki.org/browse/XWIKI-18384 x_refsource_MISC
- https://jira.xwiki.org/browse/XWIKI-18408 x_refsource_MISC