PoC Index

CVE-2019-19507

MEDIUM 5.3EPSS 1.0%

In jpv (aka Json Pattern Validator) before 2.1.1, compareCommon() can be bypassed because certain internal attributes can be overwritten via a conflicting name, as demonstrated by 'constructor': {'name':'Array'}. This affects validate(). Hence, a crafted payload can overwrite this builtin attribute to manipulate the type detection result.

CVSS v3.1
5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v3.1
5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v2.0
5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:N
EPSS
0.97% chance of exploitation in the next 30 days, 60th percentile
Published
2019-12-02
Updated
2024-08-05

Proof-of-concept exploits (1)

References

Related