Lookup for vulnerabilities affecting packages.

Vulnerability_idVCID-5tg2-vh52-5yhc
SummaryWhen a user loaded a Web Extensions context menu, the Web Extension could access the post-redirect URL of the element clicked. If the Web Extension lacked the WebRequest permission for the hosts involved in the redirect, this would be a same-origin-violation leaking data the Web Extension should have access to. This was fixed to provide the pre-redirect URL. This is related to CVE-2021-43532 but in the context of Web Extensions.
Aliases
0
alias CVE-2021-43531
Fixed_packages
0
url pkg:deb/debian/firefox@94.0-1?distro=sid
purl pkg:deb/debian/firefox@94.0-1?distro=sid
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/firefox@94.0-1%3Fdistro=sid
1
url pkg:deb/debian/firefox@149.0-1?distro=sid
purl pkg:deb/debian/firefox@149.0-1?distro=sid
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/firefox@149.0-1%3Fdistro=sid
2
url pkg:deb/debian/firefox@149.0.2-1?distro=sid
purl pkg:deb/debian/firefox@149.0.2-1?distro=sid
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/firefox@149.0.2-1%3Fdistro=sid
3
url pkg:deb/debian/firefox@150.0-1?distro=sid
purl pkg:deb/debian/firefox@150.0-1?distro=sid
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/firefox@150.0-1%3Fdistro=sid
Affected_packages
References
0
reference_url https://api.first.org/data/v1/epss?cve=CVE-2021-43531
reference_id
reference_type
scores
0
value 0.00085
scoring_system epss
scoring_elements 0.24624
published_at 2026-04-24T12:55:00Z
1
value 0.00085
scoring_system epss
scoring_elements 0.24698
published_at 2026-04-13T12:55:00Z
2
value 0.00085
scoring_system epss
scoring_elements 0.24712
published_at 2026-04-16T12:55:00Z
3
value 0.00085
scoring_system epss
scoring_elements 0.24704
published_at 2026-04-18T12:55:00Z
4
value 0.00085
scoring_system epss
scoring_elements 0.24683
published_at 2026-04-21T12:55:00Z
5
value 0.00085
scoring_system epss
scoring_elements 0.24667
published_at 2026-04-07T12:55:00Z
6
value 0.00085
scoring_system epss
scoring_elements 0.24735
published_at 2026-04-08T12:55:00Z
7
value 0.00085
scoring_system epss
scoring_elements 0.24782
published_at 2026-04-09T12:55:00Z
8
value 0.00085
scoring_system epss
scoring_elements 0.24795
published_at 2026-04-11T12:55:00Z
9
value 0.00085
scoring_system epss
scoring_elements 0.24754
published_at 2026-04-12T12:55:00Z
10
value 0.00138
scoring_system epss
scoring_elements 0.33582
published_at 2026-04-01T12:55:00Z
11
value 0.00138
scoring_system epss
scoring_elements 0.33913
published_at 2026-04-02T12:55:00Z
12
value 0.00138
scoring_system epss
scoring_elements 0.33945
published_at 2026-04-04T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2021-43531
1
reference_url https://www.mozilla.org/en-US/security/advisories/mfsa2021-48
reference_id mfsa2021-48
reference_type
scores
0
value high
scoring_system generic_textual
scoring_elements
url https://www.mozilla.org/en-US/security/advisories/mfsa2021-48
Weaknesses
Exploits
Severity_range_score7.0 - 8.9
Exploitabilitynull
Weighted_severitynull
Risk_scorenull
Resource_urlhttp://public2.vulnerablecode.io/vulnerabilities/VCID-5tg2-vh52-5yhc