CVE-2026-93868— Cotonti through 1.0.0 Predictable Password Recovery Token via Weak PRNG
Quick assessment
Affected
Cotonti Cotonti
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.
Cotonti 1.0.0 及更早版本在 文件中基于 生成密码重置验证令牌，导致令牌空间在一秒钟内仅有约一百万种可能的值。未经身份验证的攻击者可以读取服务器的 请求头，在狭窄的时间窗口内预先计算候选令牌，并针对 认证端点尝试这些令牌，从而重置任意账户（包括管理员账户）的密码。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-93868
Vulnerability Information
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Vulnerability Title
Cotonti through 1.0.0 Predictable Password Recovery Token via Weak PRNG
Source: CVE Program / CVE List V5
Vulnerability Description
Cotonti through 1.0.0 derives password recovery validation tokens from md5(microtime()) in users.passrecover.php, creating a predictable token space of approximately one million values per second. Unauthenticated attackers can read the server Date header, precompute candidate tokens within a narrow time window, and probe them against the passrecover authentication endpoint to reset any account password including administrators.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用具有密码学弱点缺陷的PRNG
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-93868
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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No public POC found.
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Patches & Fixes for CVE-2026-93868 (1)
Vendor Pages for CVE-2026-93868 (1)
Other References for CVE-2026-93868 (3)
Same Patch Batch · Cotonti · 2026-09-18 · 6 CVEs total
| CVE-2026-93872 | 7.5 HIGH | Cotonti 1.0.0 PHP Object Injection via Comments Plugin Edit Action cb Parameter |
| CVE-2026-93869 | 6.1 MEDIUM | Cotonti through 1.0.0 Open Redirect via Unanchored cot_url_check() Regex |
| CVE-2026-93871 | 5.4 MEDIUM | Cotonti through 1.0.0 Stored Open Redirect via Page redir: Prefix |
| CVE-2026-93870 | 4.3 MEDIUM | Cotonti through 1.0.0 Cross-Site Request Forgery in the Ratings Plugin AJAX Handler |
| CVE-2026-93873 | 4.3 MEDIUM | Cotonti through 1.0.0 Cross-Site Request Forgery in the Contact Plugin |
IV. Related Vulnerabilities
Same product: Cotonti
-
CVE-2026-93873
Cotonti through 1.0.0 Cross-Site Request Forgery in the Cont -
CVE-2026-93872
Cotonti 1.0.0 PHP Object Injection via Comments Plugin Edit -
CVE-2026-93871
Cotonti through 1.0.0 Stored Open Redirect via Page redir: P -
CVE-2026-93870
Cotonti through 1.0.0 Cross-Site Request Forgery in the Rati -
CVE-2026-93869
Cotonti through 1.0.0 Open Redirect via Unanchored cot_url_c
Same vendor: Cotonti
-
CVE-2026-93873
Cotonti through 1.0.0 Cross-Site Request Forgery in the Cont -
CVE-2026-93872
Cotonti 1.0.0 PHP Object Injection via Comments Plugin Edit -
CVE-2026-93871
Cotonti through 1.0.0 Stored Open Redirect via Page redir: P -
CVE-2026-93870
Cotonti through 1.0.0 Cross-Site Request Forgery in the Rati -
CVE-2026-93869
Cotonti through 1.0.0 Open Redirect via Unanchored cot_url_c
Same weakness: CWE-338
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CVE-2026-92749
SafeLine through 9.4.1 Authentication Bypass via Weak Sessio -
CVE-2026-92298
EspoCRM through 10.0.8 Weak Token Generation via rand() -
CVE-2026-74887
openssl_encrypt before 1.4.0 Insecure Random Import in PQC M -
CVE-2026-74874
openssl_encrypt before 1.4.0 Weak PRNG Steganography Pixel S -
CVE-2026-73567
sm-crypto: Predictable SM2 key generation in Node.js: defaul
V. Comments for CVE-2026-93868
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