CVE-2026-44742

7.2

CVSS
High

PUBLISHED

Postorius through 1.3.13 does not escape HTML in the message subject when rendering it in the Held messages pop-up, as exploited in the wild in May...

Exploited in the wild Remote Low complexity No user interaction

Vendor: Postorius project
Product: Postorius
Published: May 07, 2026
EPSS: 0.0% · 2% pctl

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Description

Postorius through 1.3.13 does not escape HTML in the message subject when rendering it in the Held messages pop-up, as exploited in the wild in May 2026.

Weaknesses (CWE)

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSS scores

CVSS v3.1 7.2 High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Exploitation status

Exploited in the wild

Recorded 2026-06-01 13:26:33 UTC · CVE

References

Known exploited vulnerability sources

Catalogues that list this CVE as a known exploited vulnerability.

Source	Added
CVE First	2026-06-01 13:26 UTC

Vulnerability detail