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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-88997— JSM Show Post Metadata < 4.9.1 - Contributor+ Stored XSS via Custom Field Meta Key

Quick assessment

Affected
Unknown JSM Show Post Metadata
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.

在 JSM Show Post Metadata WordPress 插件 4.9.1 版本之前，该插件在将文章元数据键输出到管理后台元框中的内联事件处理器属性之前，未对其进行适当的转义处理。这一缺陷使得具有贡献者及以上权限的用户可以注入任意 JavaScript 代码，这些代码将在具有更高权限的用户查看并审核受影响文章时，在其会话中执行。

AI Predicted 6.1 Difficulty: Easy EPSS 0.29% · P20

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown JSM Show Post Metadata < 4.9.1 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-88997

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
JSM Show Post Metadata < 4.9.1 - Contributor+ Stored XSS via Custom Field Meta Key
Source: CVE Program / CVE List V5
Vulnerability Description
The JSM Show Post Metadata WordPress plugin before 4.9.1 does not properly escape a post meta key before outputting it into an inline event-handler attribute in an admin-facing meta box, allowing users with contributor-level access and above to inject arbitrary JavaScript that executes in the session of a higher-privileged user who reviews the affected post.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unknown JSM Show Post Metadata 0 ~ 4.9.1 -

II. Public POCs for CVE-2026-88997

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-88997

请登录查看更多情报信息。

Other References for CVE-2026-88997 (1)

Same Patch Batch · Unknown · 2026-09-23 · 57 CVEs total

CVE-2026-86601 6.5 MEDIUM WP Recipe Maker < 10.8.2 - Unauthenticated Arbitrary Shortcode Execution via Comment Conte
CVE-2026-86612 5.6 MEDIUM Ninja Tables < 5.2.17 - Unauthenticated Arbitrary Shortcode Execution via Fluent Forms Dat
CVE-2026-84091 5.3 MEDIUM SUMIT Payment Gateway for WooCommerce < 4.0.0 - Unauthenticated Payment Confirmation Forge
CVE-2026-90950 5.3 MEDIUM Paid Member Subscriptions < 3.1.0 - Unauthenticated reCAPTCHA Bypass via Registration Form
CVE-2026-87978 5.3 MEDIUM Paymob for WooCommerce < 4.1.14 - Unauthenticated Payment Bypass via Unverified Subscripti
CVE-2026-87071 5.3 MEDIUM Forminator Forms < 1.57.2.1 - Unauthenticated Post Meta Injection on Submitted Posts
CVE-2026-87070 5.3 MEDIUM Forminator Forms < 1.57.2.1 - Unauthenticated Poll Vote Limit Bypass via IP Spoofing
CVE-2026-86604 4.8 MEDIUM GTranslate < 5.0.1 - Unauthenticated Arbitrary Shortcode Execution via Email Translation
CVE-2026-87848 3.7 LOW MPCX Lightbox 1.2.2 - 1.2.5 - Unauthenticated Non-Public Post Content Disclosure
CVE-2026-93511 Premium Packages < 7.2.1 - Unauthenticated PayPal Webhook Signature Verification Bypass
CVE-2026-86842 Real3D Flipbook Lite < 5.4 - Author+ Content Deletion and Stored XSS via Global Settings O
CVE-2026-90985 WPC Smart Compare for WooCommerce < 6.6.1 - Unauthenticated Password-Protected Product Des
CVE-2026-91024 Booking Manager < 2.1.21 - Author+ SQLi via ICS Import Feed UID (sync_gid)
CVE-2026-89331 FluentBoards 1.95 - 2.0.15 - Unauthenticated Board Member Email Address Disclosure via Pub
CVE-2026-87981 Paymob for WooCommerce < 4.1.14 - Contributor+ Payment Gateway Configuration Deletion and
CVE-2026-87074 Forminator Forms < 1.57.2.1 - Unauthenticated Arbitrary Recipient Email Sending with Attac
CVE-2026-87979 Paymob for WooCommerce < 4.1.14 - Unauthenticated Saved Card Token Write to Any User via W
CVE-2026-88929 Sale Booster 7.0.0 - 7.5.1 - Unauthenticated Non-Public Product Disclosure
CVE-2026-87069 Forminator Forms < 1.57.2.1 - Subscriber+ Form Stripe Field Migration via migrate_stripe
CVE-2026-86783 PostX < 5.0.41 - Unauthenticated Custom Field Key Disclosure via REST API

Showing top 20 of 57 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: JSM Show Post Metadata
Same vendor: Unknown

V. Comments for CVE-2026-88997

No comments yet

Leave a comment