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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-86111— BookWyrm through 0.9.1 Insecure Direct Object Reference in EditStatus Exposes Followers-Only and Direct Statuses

Quick assessment

Affected
bookwyrm-social bookwyrm
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.

BookWyrm是BookWyrm组织的一个供读者分享与讨论书籍的社交平台。 BookWyrm 0.9.1及之前版本存在授权问题漏洞，该漏洞源于状态编辑接口未验证用户可见性权限，可能导致已认证攻击者通过枚举顺序状态ID读取仅关注者可见和私信书评等受限内容，绕过隐私保护。

CVSS 6.5 · Medium EPSS 0.44% · P38

Possible ATT&CK Techniques 1 AI

T1029 · Scheduled Transfer

Affected Version Matrix 1

VendorProduct Version RangeStatus
bookwyrm-social bookwyrm ≤ 0.9.1 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-86111

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
BookWyrm through 0.9.1 Insecure Direct Object Reference in EditStatus Exposes Followers-Only and Direct Statuses
Source: CVE Program / CVE List V5
Vulnerability Description
BookWyrm through 0.9.1 fails to validate user visibility permissions in the status edit endpoint, allowing authenticated attackers to read followers-only and direct-message reviews by enumerating sequential status IDs. Attackers can access the raw content of restricted statuses through the edit view, bypassing the privacy protections documented for these message types.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
BookWyrm 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
BookWyrm是BookWyrm组织的一个供读者分享与讨论书籍的社交平台。 BookWyrm 0.9.1及之前版本存在授权问题漏洞，该漏洞源于状态编辑接口未验证用户可见性权限，可能导致已认证攻击者通过枚举顺序状态ID读取仅关注者可见和私信书评等受限内容，绕过隐私保护。
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
bookwyrm-social bookwyrm 0 ~ 0.9.1 -

II. Public POCs for CVE-2026-86111

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-86111

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-86111 (1)

Vendor Advisories for CVE-2026-86111 (1)

Proof of Concept for CVE-2026-86111 (1)

Vendor Pages for CVE-2026-86111 (1)

Same Patch Batch · bookwyrm-social · 2026-09-05 · 3 CVEs total

CVE-2026-86113 6.5 MEDIUM BookWyrm through 0.9.1 Insecure Direct Object Reference in edit-readthrough Allows Tamperi
CVE-2026-86112 5.4 MEDIUM BookWyrm through 0.9.1 Missing Authorization on the Favorite and Unfavorite Endpoints

IV. Related Vulnerabilities

Same product: bookwyrm
Same vendor: bookwyrm-social
Same weakness: CWE-639