PT-2026-22856 · WordPress · Postx

Pouria Shahba · Publicado 2026-03-04 · Atualizado 2026-03-04 · CVE-2026-1273

Positive Technologies (AI Summary)

CVSS v3.1

7.2

Alta

Vetor base

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

Name of the Vulnerable Software and Affected Versions PostX plugin for WordPress versions up to and including 5.0.8

Description The PostX plugin for WordPress is susceptible to Server-Side Request Forgery. This allows authenticated attackers with Administrator-level access or higher to make web requests to arbitrary locations from the web application. This can be used to query and modify information from internal services. The issue is present through the /ultp/v3/starter dummy post/ and /ultp/v3/starter import content/ API endpoints. The ultp parameter is involved in the vulnerability.

Recommendations Update the PostX plugin to a version newer than 5.0.8.

Correção

SSRF

Enumeração de Fraquezas

CWE-918

Identificadores relacionados

CVE-2026-1273

Produtos afetados

Postx

Referências · 12

• https://plugins.trac.wordpress.org/browser/ultimate-post/tags/5.0.5/classes/Importer.php#L196 · Nota
• https://twitter.com/infoflowcloud/status/2029040606610116693 · Publicação no Twitter
• https://plugins.trac.wordpress.org/browser/ultimate-post/trunk/classes/Importer.php#L196 · Nota
• https://plugins.trac.wordpress.org/browser/ultimate-post/tags/5.0.5/classes/Importer.php#L261 · Nota
• https://t.me/CVEtracker/46265 · Publicação no Telegram
• https://nvd.nist.gov/vuln/detail/CVE-2026-1273 · Nota de Segurança
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3469409%40ultimate-post&new=3469409%40ultimate-post&sfp_email=&sfph_mail= · Nota
• https://twitter.com/VulmonFeeds/status/2029044539193741479 · Publicação no Twitter
• https://wordfence.com/threat-intel/vulnerabilities/id/afe6d4ac-1712-415e-9995-cb7c8fe4e1a0?source=cve · Nota
• https://twitter.com/CVEarity/status/2029166486317875586 · Publicação no Twitter
• https://twitter.com/CVEnew/status/2029039197193965923 · Publicação no Twitter
• https://plugins.trac.wordpress.org/browser/ultimate-post/trunk/classes/Importer.php#L261 · Nota