Vulnerability in Openpgpjs

CVE-2019-9153

Improper Verification of a Cryptographic Signature in OpenPGP.js <=4.1.2 allows an attacker to forge signed messages by replacing its signatures with a "standalone" or "timestamp" signature.

EPSS: 0.020 (78.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-9153?
CVE-2019-9153 is a high-severity vulnerability in Openpgpjs, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.5/10. Published 2019-08-22.
How severe is CVE-2019-9153?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2019-9153 known to be exploited?
4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.