How severe is CVE-2022-32308?

CVE-2022-32308 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-2022-32308 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-32308?

CVE-2022-32308 affects Ublock Origin Project Ublock Origin. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-32308?

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

When was CVE-2022-32308 published?

CVE-2022-32308 was published on 2022-07-13 and last updated on 2026-06-17.

CVE-2022-32308

CVE-2022-32308 is a medium-severity vulnerability in Ublock Origin Project Ublock Origin 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% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Ublock Origin Project Ublock Origin
Published: 2022-07-13
Last modified: 2026-06-17

Description

Cross Site Scripting (XSS) vulnerability in uBlock Origin extension before 1.41.1 allows remote attackers to run arbitrary code via a spoofed 'MessageSender.url' to the browser renderer process.

Frequently asked questions

What is CVE-2022-32308?: Cross Site Scripting (XSS) vulnerability in uBlock Origin extension before 1.41.1 allows remote attackers to run arbitrary code via a spoofed 'MessageSender.url' to the browser renderer process.
How severe is CVE-2022-32308?: CVE-2022-32308 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-2022-32308 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-32308?: CVE-2022-32308 affects Ublock Origin Project Ublock Origin. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-32308?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-32308 published?: CVE-2022-32308 was published on 2022-07-13 and last updated on 2026-06-17.

References

https://github.com/uBlockOrigin/uBlock-issues/issues/1992

Affected products (1)

cpe:2.3:a:ublock_origin_project:ublock_origin:*:*:*:*:*:*:*:*

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