CVE-2022-23543

MEDIUM

silverwaregames < 1.1.34 - Stored Cross-Site Scripting via Custom HTML Attributes in YouTube Iframe

Title source: llm
STIX 2.1

Description

Silverware Games is a social network where people can play games online. Users can attach URLs to YouTube videos, the site will generate related `<iframe>` when the post will be published. The handler has some sort of protection so non-YouTube links can't be posted, as well as HTML tags are being stripped. However, it was still possible to add custom HTML attributes (e.g. `onclick=alert("xss")`) to the `<iframe>'. This issue was fixed in the version `1.1.34` and does not require any extra actions from our members. There has been no evidence that this vulnerability was used by anyone at this time.

References (1)

Core 1

Scores

CVSS v3 6.3
EPSS 0.0033
EPSS Percentile 25.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-80 CWE-79
Status published
Products (1)
silverwaregames/silverwaregames < 1.1.34
Published Dec 19, 2022
Tracked Since Feb 18, 2026