PT-2026-40467 · Flowsint · Flowsint

CVE-2026-42157 · Published 2026-05-12 · Updated 2026-05-13

Positive Technologies (AI Summary)

CVSS v4.0

5.1

Medium

Base vector

AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions Flowsint versions prior to 1.2.3

Description A remote attacker can create a map node with a malicious label containing arbitrary HTML. When the map tab and a map node marker are selected, the application renders the HTML, which can trigger stored Cross-Site Scripting (XSS), a flaw where malicious scripts are permanently stored on the target server and executed in the victim's browser.

Recommendations Update to version 1.2.3.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-42157

GHSA-GJ93-2VCQ-729W

Affected Products

Flowsint

References · 7

• 🔥 https://github.com/reconurge/flowsint/security/advisories/GHSA-gj93-2vcq-729w · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42157.json · Exploit
• https://osv.dev/vulnerability/CVE-2026-42157 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-42157 · Security Note
• https://twitter.com/VulmonFeeds/status/2054396861306302527 · Twitter Post
• https://t.me/CVEtracker/53574 · Telegram Post
• https://t.me/cveNotify/163313 · Telegram Post