How severe is CVE-2022-28353?

CVE-2022-28353 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2022-28353 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-28353?

CVE-2022-28353 affects External Redirect Warning Project External Redirect Warning. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-28353?

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

When was CVE-2022-28353 published?

CVE-2022-28353 was published on 2023-04-16 and last updated on 2026-06-17.

CVE-2022-28353

CVE-2022-28353 is a medium-severity vulnerability in External Redirect Warning Project External Redirect Warning with a CVSS 3.x base score of 6.1. 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 6.1)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: External Redirect Warning Project External Redirect Warning
Published: 2023-04-16
Last modified: 2026-06-17

Description

In the External Redirect Warning Plugin 1.3 for MyBB, the redirect URL (aka external.php?url=) is vulnerable to XSS.

Frequently asked questions

What is CVE-2022-28353?: In the External Redirect Warning Plugin 1.3 for MyBB, the redirect URL (aka external.php?url=) is vulnerable to XSS.
How severe is CVE-2022-28353?: CVE-2022-28353 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2022-28353 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-28353?: CVE-2022-28353 affects External Redirect Warning Project External Redirect Warning. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-28353?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-28353 published?: CVE-2022-28353 was published on 2023-04-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:external_redirect_warning_project:external_redirect_warning:1.3:*:*:*:*:mybb:*:*

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