Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
4 results
Jan 26, 2026HUSTOF is an open source online judge based on PHP/C++/MySQL/Linux for ACM/ICPC and NOIP training.CVE-2026-24479 · Other software · zhblue · reported by GitHubCritical 9.3
HUSTOF is an open source online judge based on PHP/C++/MySQL/Linux for ACM/ICPC and NOIP training. Prior to version 26.01.24, the problem_import_qduoj.php and problem_import_hoj.php modules fail to properly sanitize filenames within uploaded ZIP archives. Attackers can craft a malicious ZIP file containing files with path traversal sequences (e.g., ../../shell.php). When extracted by the server, this allows writing files to arbitrary locations in the web root, leading to Remote Code Execution (RCE). Version 26.01.24 contains a fix for the issue.
- Product
- hustoj
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 21, 2026hustoj is an open source online judge based on PHP/C++/MySQL/Linux for ACM/ICPC and NOIP training.CVE-2026-23873 · Other software · zhblue · reported by GitHubMedium 5.2
hustoj is an open source online judge based on PHP/C++/MySQL/Linux for ACM/ICPC and NOIP training. All versions are vulnerable to CSV Injection (Formula Injection) through the contest rank export functionality (contestrank.xls.php and admin/ranklist_export.php). The application fails to sanitize user-supplied input (specifically the "Nickname" field) before exporting it to an .xls file (which renders as an HTML table but is opened by Excel). If a malicious user sets their nickname to an Excel formula when an administrator exports and opens the rank list in Microsoft Excel, the formula will be executed. This can lead to arbitrary command execution (RCE) on the administrator's machine or data exfiltration. A fix was not available at the time of publication.
- Product
- hustoj
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 19, 2025Cross site scripting (XSS) vulnerability in Hustoj 2025-01-31 via the TID parameter to thread.php.CVE-2025-50938 · Other software · Hustoj · reported by MITREMedium 6.1
Cross site scripting (XSS) vulnerability in Hustoj 2025-01-31 via the TID parameter to thread.php.
- Product
- Hustoj
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Nov 16, 2022Hustoj 22.09.22 has a XSS Vulnerability in /admin/problem_judge.php.CVE-2022-42187 · Other software · Hustoj · reported by MITREMedium 6.1
Hustoj 22.09.22 has a XSS Vulnerability in /admin/problem_judge.php.
- Product
- Hustoj
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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