Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-18436— MailerPress <= 1.5.0 - Missing Authorization to Unauthenticated Arbitrary Modification via REST API Endpoint

Quick assessment

Affected
mailerpress MailerPress – Newsletter, email marketing & AI automation
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress MailerPress是WordPress基金会的一款邮件防垃圾邮件系统。 WordPress MailerPress 1.5.0及之前版本存在授权问题漏洞，该漏洞源于未使用权限回调注册campaign revision-restore REST端点，可能导致未经身份验证的攻击者通过恢复任意修订版本来修改campaign内容。

CVSS 5.3 · Medium EPSS 0.39% · P31

Affected Version Matrix 1

VendorProduct Version RangeStatus
mailerpress MailerPress – Newsletter, email marketing & AI automation ≤ 1.5.0 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-18436

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
MailerPress <= 1.5.0 - Missing Authorization to Unauthenticated Arbitrary Modification via REST API Endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
The MailPress plugin for WordPress is vulnerable to unauthorized access in versions up to, and including, 1.5.0 via the campaign revision-restore REST endpoint (POST /wp-json/mailpress/v1/campaign/<id>/restore-revision/<revision_id>). The route in the vulnerable range was registered without a permissionCallback, allowing the restoreRevision() handler to run for unauthenticated requests and overwrite a campaign's content_html with any prior revision. This makes it possible for unauthenticated attackers to modify campaign content by restoring an arbitrary revision.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress MailerPress 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress MailerPress是WordPress基金会的一款邮件防垃圾邮件系统。 WordPress MailerPress 1.5.0及之前版本存在授权问题漏洞，该漏洞源于未使用权限回调注册campaign revision-restore REST端点，可能导致未经身份验证的攻击者通过恢复任意修订版本来修改campaign内容。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
mailerpress MailerPress – Newsletter, email marketing & AI automation 0 ~ 1.5.0 -

II. Public POCs for CVE-2026-18436

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-18436

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-18436 (1)

IV. Related Vulnerabilities

Same product: MailerPress – Newsletter, email marketing & AI automation
Same vendor: mailerpress
Same weakness: CWE-862

V. Comments for CVE-2026-18436

No comments yet

Leave a comment