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CVE-2026-80211— FrontAccounting through 2.4.20 Use of Unsalted MD5 for Password Storage

Quick assessment

Affected
FrontAccounting FrontAccounting
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.

FrontAccounting 2.4.20 及更早版本以无盐 MD5 摘要形式存储和验证用户密码。具体而言： 将 传递给 和 ； 在用户更改自身密码时，同样使用 对密码进行哈希； 中处理“忘记密码”流程时，对新生成的密码也采用相同的 MD5 哈希方式； 认证逻辑调用 。 整个代码库未对密码应用每用户独立的盐值（per-password salt），也没有调用 、 或其他自适应哈希函数。因此，相同密码会生成完全相同的摘要值。一旦攻击者获取到用户数据表，即可利用预计算的查找表（彩虹表）或基于 GPU 的高速率暴力破解

CVSS 5.9 · Medium

Possible ATT&CK Techniques 1 AI

T1552.001 · Credentials In Files

Affected Version Matrix 1

VendorProduct Version RangeStatus
FrontAccounting FrontAccounting ≤ 2.4.20 affected
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I. Basic Information for CVE-2026-80211

Vulnerability Information
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Vulnerability Title
FrontAccounting through 2.4.20 Use of Unsalted MD5 for Password Storage
Source: CVE Program / CVE List V5
Vulnerability Description
FrontAccounting through 2.4.20 stores and verifies user passwords as unsalted MD5 digests. admin/users.php passes md5($_POST['password']) to add_user() and update_user_password(), admin/change_current_user_password.php does the same when a user changes their own password, the forgotten-password path in includes/current_user.inc hashes the newly generated password the same way, and authentication calls get_user_auth($loginname, md5($password)). The codebase applies no per-password salt and contains no call to password_hash(), password_verify() or any other adaptive hash, so identical passwords yield identical digests and an attacker who obtains the user table can recover plaintext passwords with precomputed lookup tables or high-rate GPU cracking.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用具有不充分计算复杂性的口令哈希
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
FrontAccounting FrontAccounting 0 ~ 2.4.20 -

II. Public POCs for CVE-2026-80211

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III. Intelligence Information for CVE-2026-80211

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Vendor Advisories for CVE-2026-80211 (1)

Proof of Concept for CVE-2026-80211 (1)

Security Blog Posts for CVE-2026-80211 (1)

Vendor Pages for CVE-2026-80211 (1)

IV. Related Vulnerabilities

Same product: FrontAccounting
Same vendor: FrontAccounting
Same weakness: CWE-916

V. Comments for CVE-2026-80211

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