4.3
CVE-2021-43827
- EPSS 0.8%
- Veröffentlicht 14.12.2021 23:15:08
- Zuletzt bearbeitet 21.11.2024 06:29:52
- Quelle security-advisories@github.com
- CVE-Watchlists
- Unerledigt
LoginInline footnotes wrapped in <a> tags can cause errors in discourse-footnotes
discourse-footnote is a library providing footnotes for posts in Discourse. ### Impact When posting an inline footnote wrapped in `<a>` tags (e.g. `<a>^[footnote]</a>`, the resulting rendered HTML would include a nested `<a>`, which is stripped by Nokogiri because it is not valid. This then caused a javascript error on topic pages because we were looking for an `<a>` element inside the footnote reference span and getting its ID, and because it did not exist we got a null reference error in javascript. Users are advised to update to version 0.2. As a workaround editing offending posts from the rails console or the database console for self-hosters, or disabling the plugin in the admin panel can mitigate this issue.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Discourse ≫ Discourse Footnote SwPlatformdiscourse Version < 0.2
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.8% | 0.518 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 4 | 8 | 2.9 |
AV:N/AC:L/Au:S/C:N/I:N/A:P
|
| security-advisories@github.com | 4.3 | 2.8 | 1.4 |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
|
CWE-755 Improper Handling of Exceptional Conditions
The product does not handle or incorrectly handles an exceptional condition.
https://github.com/discourse/discourse-footnote/commit/796617e0131277011207541313522cd1946661ab
https://github.com/discourse/discourse-footnote/security/advisories/GHSA-58vr-c56v-qr57