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GHSA-5pxr-7m4j-jjc6
No affected components available
Summary
Regardless of the role or privileges, no user should be able to inject malicious JavaScript (JS) scripts into the body HTML. an XSS (Cross-Site Scripting) vulnerability, specifically a Stored XSS, which affects all pages of the website. Once the JS script is embedded in the body HTML, the XSS will trigger on any page a victim visits, such as the about, blog, contact, or any other pages, except for the panel.
Impact
This vulnerability allows attackers to inject malicious JS or HTML through a crafted payload into the vulnerable spot, achieving persistence and attacking numerous visitors or anyone accessing the website. The attack can be widespread and affect many users because the malicious JS will execute on every page, unlike an injection on a specific page (e.g., injecting on the About page would only affect that page). In this case, a single injection point leads to the execution of the malicious JS on all pages.
Patches
- Formwork 1.13.1 has been released with a patch that solves this vulnerability by escaping all metadata attributes.
- Formwork 2.x (f531201) also escapes metadata attributes.
Details
An attackers (requires administrator privilege) to execute arbitrary web scripts by modifying site options via /panel/options/site. This type of attack is suitable for persistence, affecting visitors across all pages (except the dashboard).
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs high-level or administrative privileges. The attacker needs the user to perform some action, like clicking a link. The vulnerability can affect other systems as well, not just the initial system. There is a low impact on the confidentiality of the information. There is a low impact on the integrity of the data.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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