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Fencer Intel
medium 4.3

CVE-2012-2899 json

Google Chrome before 21.0.1180.82 on iOS makes certain incorrect calls to WebView methods that trigger use of an applewebdata: URL, which a…

published 2014-01-05 12 y ago modified 2026-06-16 4 mo ago also EUVD-2012-2879

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits
0
none known

Summary

Google Chrome before 21.0.1180.82 on iOS makes certain incorrect calls to WebView methods that trigger use of an applewebdata: URL, which allows remote attackers to bypass the Same Origin Policy and conduct Universal XSS (UXSS) attacks via vectors involving the document.write method.

Patch / fix

  • google chrome 21.0.1180.82

Exploit prediction

0.81% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Consolidate version ranges.