CVE-2022-42927
A same-origin policy violation could have allowed the theft of cross-origin URL entries, leaking the result of a redirect, via…
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
A same-origin policy violation could have allowed the theft of cross-origin URL entries, leaking the result of a redirect, via `performance.getEntries()`. This vulnerability affects Firefox < 106, Firefox ESR < 102.4, and Thunderbird < 102.4.
Public exploit
A reference of the record is tagged as an exploit or proof of concept: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: a proof of concept is public.
- https://bugzilla.mozilla.org/show_bug.cgi?id=1789128 (opens in a new tab)x_transferredexploit
Timeline
ID reserved
By mozilla
- 2 months later
· 2 months later
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N |
| NVDNVD · Modified | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.45% · top 61% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.1.
Weakness
- Same-origin policy violation could have leaked cross-origin URLs
- CWE-346 Origin Validation Error (opens in a new tab)All about CWE-346 and its CVEs
Affected products
- affected unspecified – < 106
- affected unspecified – < 102.4
- affected unspecified – < 102.4
References (4)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1789128 (opens in a new tab)x_transferredexploit
- https://www.mozilla.org/security/advisories/mfsa2022-44/ (opens in a new tab)x_transferred
- https://www.mozilla.org/security/advisories/mfsa2022-45/ (opens in a new tab)x_transferred
- https://www.mozilla.org/security/advisories/mfsa2022-46/ (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-42927)Record last updated .