# CVE-2021-32732: Cross-Site Request Forgery in xwiki-platform > Attackers can determine if an email is registered and retrieve associated usernames via CSRF on the Forgot username page. - **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 4 Feb 2022 - **Updated:** 22 Apr 2025 - **Also known as:** GHSA-vh5c-jqfg-mhrh ## What is CVE-2021-32732? CVE-2021-32732 is a high-severity vulnerability in Xwiki Xwiki, published on 4 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim. ### 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) Weakness: CWE-352 (Cross-Site Request Forgery) ## Which versions are affected by CVE-2021-32732? 4 open source packages ship an affected version, including org.xwiki.platform:xwiki-platform-administration-ui. It affects 1 product. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `org.xwiki.platform:xwiki-platform-administration-ui` | Maven | All versions | 12.10.5 | | `org.xwiki.platform:xwiki-platform-administration-ui` | Maven | All versions | 12.10.5 | | `org.xwiki.platform:xwiki-platform-administration-ui` | Maven | From 13.0 | 13.2RC1 | | `org.xwiki.platform:xwiki-platform-administration-ui` | Maven | From 13.0 | 13.2RC1 | Products: Xwiki Xwiki. ## How do I fix CVE-2021-32732? Upgrade org.xwiki.platform:xwiki-platform-administration-ui to a fixed version for your release line: 12.10.5 or 13.2RC1. ## Is CVE-2021-32732 being exploited? It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-32732 exists. ## Other vulnerabilities in Xwiki Xwiki - [CVE-2025-24893](https://insights.sbomify.com/CVE-2025-24893/): XWiki Platform Eval Injection (critical 9.8, exploited in the wild) - [CVE-2025-53836](https://insights.sbomify.com/CVE-2025-53836/): XWiki Rendering is vulnerable to RCE attacks when processing nested macros (critical 10.0) - [CVE-2024-55662](https://insights.sbomify.com/CVE-2024-55662/): XWiki allows remote code execution through the extension sheet (critical 10.0) - [CVE-2024-55877](https://insights.sbomify.com/CVE-2024-55877/): XWiki allows remote code execution from account through macro descriptions and XWiki.XWikiSyntaxMacrosList (critical 10.0) - [CVE-2024-37901](https://insights.sbomify.com/CVE-2024-37901/): XWiki Platform vulnerable to remote code execution from account via SearchSuggestConfigSheet (critical 10.0) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2021-32732 and fix it if it is affected. What it is: CVE-2021-32732 is a high-severity vulnerability in Xwiki Xwiki, published on 4 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim. Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-32732 exists. Affected packages and fixed versions: - org.xwiki.platform:xwiki-platform-administration-ui (Maven): affected all versions; fixed in 12.10.5 - org.xwiki.platform:xwiki-platform-administration-ui (Maven): affected all versions; fixed in 12.10.5 - org.xwiki.platform:xwiki-platform-administration-ui (Maven): affected from 13.0; fixed in 13.2RC1 - org.xwiki.platform:xwiki-platform-administration-ui (Maven): affected from 13.0; fixed in 13.2RC1 Task: 1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies. 2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it. 3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead. 4. Run the tests and summarise what changed and why. 5. If nothing in the project is affected, say so and change nothing. Reference: https://insights.sbomify.com/CVE-2021-32732/ (Markdown: https://insights.sbomify.com/CVE-2021-32732/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2021-32732 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-32732 - OSV: https://osv.dev/vulnerability/CVE-2021-32732 --- From sbomify Insights: https://insights.sbomify.com/CVE-2021-32732/ Summaries are generated and may contain mistakes; the official description above is the record.