What is CVE-2022-23543?

CVE-2022-23543 is a medium-severity vulnerability in Mesosoi Silverwaregames-Io-Issue-Tracker, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 6.3/10. Published 2022-12-19.

How severe is CVE-2022-23543?

Medium severity. CVSS v3 base score is 6.3 out of 10.

XSS in Mesosoi Silverwaregames-Io-Issue-Tracker

CVE-2022-23543

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.

EPSS: 0.003 (25.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

Mesosoi Silverwaregames-io-issue-tracker — versions < 1.1.34
Silverwaregames

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2022-23543?: CVE-2022-23543 is a medium-severity vulnerability in Mesosoi Silverwaregames-Io-Issue-Tracker, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 6.3/10. Published 2022-12-19.
How severe is CVE-2022-23543?: Medium severity. CVSS v3 base score is 6.3 out of 10.