CVE-2024-47782: wikidiscover XSS — Fix

Description

WikiDiscover is an extension designed for use with a CreateWiki managed farm to display wikis. Special:WikiDiscover is a special page that lists all wikis on the wiki farm. However, the special page does not make any effort to escape the wiki name or description. Therefore, if a wiki sets its name and/or description to an XSS payload, the XSS will execute whenever the wiki is shown on Special:WikiDiscover. This issue has been patched with commit `2ce846dd93` and all users are advised to apply that patch. User unable to upgrade should block access to `Special:WikiDiscover`.

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CVSS v3.1 Score

7.6

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

CWE-80 CWE-80

Affected Products

Vendor	Product	Versions
miraheze	wikidiscover	< 2024-10-06

References

Advisories & Patches

https://github.com/miraheze/WikiDiscover/commit/2ce846dd93ddb9ec86f7472c4d57fe71a09dc827 https://github.com/miraheze/WikiDiscover/security/advisories/GHSA-wf48-rqx3-39mf

Other References

https://issue-tracker.miraheze.org/T12697

Frequently Asked Questions

What is CVE-2024-47782? +

WikiDiscover is an extension designed for use with a CreateWiki managed farm to display wikis. Special:WikiDiscover is a special page that lists all wikis on the wiki farm. However, the special page does not make any effort to escape the wiki name or description. Therefore, if a wiki sets its name and/or description to an XSS payload, the XSS will execute whenever the wiki is shown on Special:WikiDiscover. This issue has been patched with commit `2ce846dd93` and all users are advised to apply that patch. User unable to upgrade should block access to `Special:WikiDiscover`. It has a CVSS v3.1 base score of 7.6 (HIGH).

How severe is CVE-2024-47782? +

CVE-2024-47782 has a CVSS v3.1 score of 7.6 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-47782? +

CVE-2024-47782 affects products from miraheze, specifically: wikidiscover. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-47782? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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