SB2023040424 - Multiple vulnerabilities in wagtail

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Stored cross-site scripting (CVE-ID: CVE-2023-28836)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the ModelAdmin views. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

2) Resource exhaustion (CVE-ID: CVE-2023-28837)

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources. A remote administrator can trigger resource exhaustion and perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://github.com/wagtail/wagtail/releases/tag/v4.2.2
• https://docs.wagtail.org/en/stable/reference/contrib/modeladmin/chooseparentview.html#customising-chooseparentview
• https://github.com/wagtail/wagtail/security/advisories/GHSA-5286-f2rf-35c2
• https://docs.wagtail.org/en/stable/reference/contrib/modeladmin/inspectview.html#enabling-customising-inspectview
• https://github.com/wagtail/wagtail/commit/eefc3381d37b476791610e5d30594fae443f33af
• https://github.com/wagtail/wagtail/commit/bc84bf9815610cfbf8db3b6050c7ddcbaa4b9713
• https://github.com/wagtail/wagtail/commit/5be2b1ed55fd7259dfdf2c82e7701dba407b8b62
• https://github.com/wagtail/wagtail/commit/ff806ab173a504395fdfb3139eb0a29444ab4b91
• https://github.com/wagtail/wagtail/commit/cfa11bbe00dbe7ce8cd4c0bbfe2a898a690df2bf
• https://github.com/wagtail/wagtail/commit/3c0c64642b9e5b8d28b111263c7f4bddad6c3880
• https://github.com/wagtail/wagtail/security/advisories/GHSA-33pv-vcgh-jfg9
• https://docs.wagtail.org/en/stable/reference/settings.html#wagtailimages-max-upload-size
• https://github.com/wagtail/wagtail/commit/c9d2fcd650a88d76ae122646142245e5927a9165
• https://github.com/wagtail/wagtail/commit/d4022310cbe497993459c3136311467c7ac6329a
• https://github.com/wagtail/wagtail/releases/tag/v4.1.4