How severe is CVE-2022-23543?

CVE-2022-23543 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2022-23543 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-23543?

CVE-2022-23543 affects Silverwaregames. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-23543?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-23543 published?

CVE-2022-23543 was published on 2022-12-19 and last updated on 2026-06-17.

CVE-2022-23543

CVE-2022-23543 is a medium-severity vulnerability in Silverwaregames with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Silverwaregames
Published: 2022-12-19
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2022-23543?: CVE-2022-23543 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2022-23543 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-23543?: CVE-2022-23543 affects Silverwaregames. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-23543?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-23543 published?: CVE-2022-23543 was published on 2022-12-19 and last updated on 2026-06-17.

References

https://github.com/mesosoi/silverwaregames-io-issue-tracker/security/advisories/GHSA-62r9-4v3r-rw89

Affected products (1)

cpe:2.3:a:silverwaregames:silverwaregames:*:*:*:*:*:*:*:*

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