Informazioni sul CVE-2022-36033
jsoup may not sanitize Cross-Site Scripting (XSS) attempts if SafeList.preserveRelativeLinks is enabled
CWE ID: CWE-87
Base Score (CVSS): N/A
CVE: CVE-2022-36033
Descrizione: jsoup is a Java HTML parser, built for HTML editing, cleaning, scraping, and cross-site scripting (XSS) safety. jsoup may incorrectly sanitize HTML including `javascript:` URL expressions, which could allow XSS attacks when a reader subsequently clicks that link. If the non-default `SafeList.preserveRelativeLinks` option is enabled, HTML including `javascript:` URLs that have been crafted with control characters will not be sanitized. If the site that this HTML is published on does not set a Content Security Policy, an XSS attack is then possible. This issue is patched in jsoup 1.15.3. Users should upgrade to this version. Additionally, as the unsanitized input may have been persisted, old content should be cleaned again using the updated version. To remediate this issue without immediately upgrading: – disable `SafeList.preserveRelativeLinks`, which will rewrite input URLs as absolute URLs – ensure an appropriate [Content Security Policy](https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP) is defined. (This should be used regardless of upgrading, as a defence-in-depth best practice.)
Vettore di attacco CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Punteggio CVSS
Il CVSS è un sistema di valutazione che misura la gravità di una vulnerabilità informatica considerando fattori come l’impatto potenziale, la probabilità di attacco e la facilità di esecuzione.
Riassunto: Accesso: Network, Privilegi: None, Interazione utente: Required, Confidenzialità: Low, Integrità: Low, Disponibilità: None.
Dettaglio del Vettore
| Metrica | Valore | Significato | Descrizione |
|---|---|---|---|
| Attack Vector (AV) | N | Network | L’attacco può essere eseguito da remoto attraverso la rete. |
| Attack Complexity (AC) | L | Low | L’attacco non richiede condizioni particolari. |
| Privileges Required (PR) | N | None | Non sono richiesti privilegi. |
| User Interaction (UI) | R | Required | È richiesta l’interazione di un utente. |
| Scope (S) | C | Changed | La vulnerabilità impatta su componenti esterni. |
| Confidentiality Impact (C) | L | Low | Impatto limitato. |
| Integrity Impact (I) | L | Low | Impatto limitato. |
| Availability Impact (A) | N | None | Nessun impatto sulla disponibilità. |
Riferimenti esterni
- https://github.com/jhy/jsoup/security/advisories/GHSA-gp7f-rwcx-9369
- https://github.com/jhy/jsoup/releases/tag/jsoup-1.15.3
- https://jsoup.org/news/release-1.15.3
- https://security.netapp.com/advisory/ntap-20221104-0006/
Prodotti interessati
- jhy – jsoup