PT-2026-49052 · Allegra · Allegra

Bobby Gould + 1 · CVE-2026-11443 · Published 2026-06-11 · Updated 2026-06-16

Positive Technologies (AI Summary)

CVSS v3.1

4.6

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Allegra (affected versions not specified)

Description A flaw in the downloadAttachment() method allows remote attackers to execute arbitrary scripts on affected installations. This occurs due to insufficient validation of user-supplied data, enabling script injection in the context of the current user. Exploitation requires user interaction, such as visiting a malicious page or opening a malicious file.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-11443

ZDI-26-358

Affected Products

Allegra

References · 7

• https://zerodayinitiative.com/advisories/ZDI-26-358 · Security Note
• https://alltena.com/en/resources/release-notes/release-notes-for-release-9-0-0 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-11443 · Security Note
• https://t.me/cveNotify/167494 · Telegram Post
• https://t.me/cveNotify/167335 · Telegram Post
• https://t.me/CVEtracker/56780 · Telegram Post
• https://twitter.com/CVEnew/status/2065840874790039929 · Twitter Post