CVE-2025-65849
Quick assessment
Affected
n/a n/a
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.
ALTCHA是ALTCHA开源的一个自托管验证码软件。 ALTCHA存在安全漏洞，该漏洞源于加密分析缺陷，可能导致通过数学推导恢复随机数。
Possible ATT&CK Techniques 2 AI
T1592 · Gather Victim Host Information T1590 · Gather Victim Network Information
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I. Basic Information for CVE-2025-65849
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A cryptanalytic break in Altcha Proof-of-Work obfuscation mode version 0.8.0 and later allows for remote visitors to recover the Proof-of-Work nonce in constant time via mathematical deduction. NOTE: this is disputed by the Supplier because the product's objective is "to discourage automated scraping / bots, not guarantee resistance to determined attackers." The documentation states “the goal is not to provide a secure cryptographic algorithm but to use a proof-of-work mechanism that allows any capable device to decrypt the hidden data.”
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
Vulnerability Title
ALTCHA 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ALTCHA是ALTCHA开源的一个自托管验证码软件。 ALTCHA存在安全漏洞，该漏洞源于加密分析缺陷，可能导致通过数学推导恢复随机数。
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 |
|---|---|---|---|---|
| - | n/a | n/a | - |
|
II. Public POCs for CVE-2025-65849
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2025-65849 (1)
Same Patch Batch · n/a · 2025-12-08 · 21 CVEs total
| CVE-2025-14245 | 7.3 HIGH | IdeaCMS Coupon.php whereRaw sql injection |
| CVE-2025-14244 | 2.4 LOW | GreenCMS Menu Management CustomController.class.php cross site scripting |
| CVE-2025-65804 | Tenda Ax3 安全漏洞 | |
| CVE-2025-65228 | R.V.R. Elettronica TLK302T 安全漏洞 | |
| CVE-2025-65229 | Lyrion Music Server 安全漏洞 | |
| CVE-2025-65230 | Barix Instreamer 安全漏洞 | |
| CVE-2025-65231 | Barix Instreamer 安全漏洞 | |
| CVE-2025-65548 | Cashu NUTs 安全漏洞 | |
| CVE-2025-65271 | Azuriom 安全漏洞 | |
| CVE-2025-64081 | SourceCodester Patients Waiting Area Queue Management System SQL注入漏洞 | |
| CVE-2025-60912 | phpIPAM 安全漏洞 | |
| CVE-2025-59391 | libcoap 安全漏洞 | |
| CVE-2025-63721 | HummerCloud HummerRisk 安全漏洞 | |
| CVE-2025-65363 | Ruijie AP_RGOS 安全漏洞 | |
| CVE-2025-65799 | Memos 安全漏洞 | |
| CVE-2025-65797 | Memos 安全漏洞 | |
| CVE-2025-65795 | Memos 安全漏洞 | |
| CVE-2025-65796 | Memos 安全漏洞 | |
| CVE-2025-65798 | Memos 安全漏洞 | |
| CVE-2025-61318 | Emlog Pro 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2025-65849
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