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CVE-2018-18351
Lack of proper validation of ancestor frames site when sending lax cookies in Navigation in Google Chrome prior to 71.0.3578.80 allowed a…
- 6.5MediumCVSS base score
- 2.5%Exploitation in 30 daysEPSS · top 15% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Lack of proper validation of ancestor frames site when sending lax cookies in Navigation in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to bypass SameSite cookie policy via a crafted HTML page.
Timeline
ID reserved
By Chrome
- 57 days later
· 57 days later
Published
- 6 years later
· 6 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 |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium6.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 2.5% · top 15% of all CVEs (11 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Affected products
References
References6
- https://crbug.com/833847 (opens in a new tab)x_refsource_MISCx_transferred
- https://chromereleases.googleblog.com/2018/12/stable-channel-update-for-desktop.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2018:3803 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- DSA-4352 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 106084 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- GLSA-201908-18 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_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)
- EUVD EUVD-2018-10082 (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://cveledger.app/cve/CVE-2018-18351)Record last updated .