PoC Index85,127 CVEs with PoCs

CVE-2026-118129

jeremyckahn Chitchatter PostMessage Bootstrap.tsx isConfigMessageEvent improper authentication

LOW 2.1EPSS 0.3%

A vulnerability was found in jeremyckahn Chitchatter up to f82538633813c854a81a8b2112a2f6ba17b39cbc. The affected element is the function isConfigMessageEvent of the file src/Bootstrap.tsx of the component PostMessage Handler. Performing a manipulation of the argument parentDomain results in improper authentication. Remote exploitation of the attack is possible. The exploit has been made public and could be used. This product follows a rolling release approach for continuous delivery, so version details for affected or updated releases are not provided. The patch is named e3babb5cd83bfe3b99f1d82358ac5c1ea8e8a688. It is recommended to apply a patch to fix this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Affected
jeremyckahn · Chitchatter
CVSS v4.0 VULDB
2.1 LOWCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 VULDB
6.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
CVSS v2.0 VULDB
7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS
0.34% chance of exploitation in the next 30 days, 28th percentile
Published
2026-10-27
Updated
2026-11-02

Proof-of-concept exploits (1)

CVE references

References

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