CVE-2022-32308: Cross Site Scripting (XSS) vulnerability in uBlock Origin extension before 1.41.1 allows remote attackers to r

Q: How do I fix CVE-2022-32308?

ublock origin: upgrade to 1.41.1. Exact commands for each OS are on this page.

Q: Is CVE-2022-32308 being exploited?

CVE-2022-32308 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2022-32308 affect?

CVE-2022-32308 affects ublock origin. Severity is medium (CVSS 6.1). 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.

Q: How urgent is CVE-2022-32308?

Priority 34/100. No elevated risk signals yet.

Routine

MEDIUM 6.1UPGRADE

CVE-2022-32308 is a medium-severity flaw (CVSS 6.1) affecting ublock origin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.6% (top 49%)
CISA exploited list	No
Weakness	CWE-79
Published	2022-07-13
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ublock origin project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-07-13 20:15 UTCPublished CVE record published
2026-06-17 04:47 UTCUpdated Record last modified

ublock origin project ublock origin UPGRADE

Affected: < 1.41.1

Fixed in: 1.41.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy ublock-origin || rpm -q ublock-origin || ublock-origin --version

2. UPGRADE to 1.41.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade ublock-origin

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ublock-origin

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-32308?

ublock origin: upgrade to 1.41.1. Exact commands for each OS are on this page.

Is CVE-2022-32308 being exploited?

CVE-2022-32308 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-32308 affect?

CVE-2022-32308 affects ublock origin. Severity is medium (CVSS 6.1). 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 urgent is CVE-2022-32308?

Priority 34/100. No elevated risk signals yet.

Related CVEs

CVE-2025-4215 LOW 3.1 UPGRADE MITIGATE A vulnerability was found in gorhill uBlock Origin up to 1.63.3b16
CVE-2021-36773 HIGH 7.5 UPGRADE UPGRADE uBlock Origin before 1.36.2 and nMatrix before 4.4.9 support an arbitrary depth of parameter nesting for stric

References

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