CVE-2026-4973 | SourceCodester Online Quiz System up to 1.0 add-question.php quiz_question cross site scripting

VDB-353860 · CVE-2026-4973 · GCVE-100-353860 SOURCECODESTER ONLINE QUIZ SYSTEM UP TO 1.0 ADD-QUESTION.PHP QUIZ_QUESTION CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 3.2 $0-$5k 1.50+ Summaryinfo A vulnerability labeled as problematic has been found in SourceCodester Online Quiz System up to 1.0. Affected by this issue is some unknown functionality of the file endpoint/add-question.php. Executing a manipulation of the argument quiz_question can lead to cross site scripting. This vulnerability is registered as CVE-2026-4973. It is possible to launch the attack remotely. Furthermore, an exploit is available. Detailsinfo A vulnerability was found in SourceCodester Online Quiz System up to 1.0. It has been declared as problematic. This vulnerability affects an unknown part of the file endpoint/add-question.php. The manipulation of the argument quiz_question with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The advisory is shared for download at gist.github.com. This vulnerability was named CVE-2026-4973. The exploitation appears to be easy. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1059.007. It is possible to download the exploit at gist.github.com. It is declared as proof-of-concept. By approaching the search of inurl:endpoint/add-question.php it is possible to find vulnerable targets with Google Hacking. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Vendor SourceCodester Name Online Quiz System Version 1.0 License free Website Vendor: https://www.sourcecodester.com/ CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 3.5 VulDB Meta Temp Score: 3.2 VulDB Base Score: 3.5 VulDB Temp Score: 3.2 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Cross site scripting CWE: CWE-79 / CWE-94 / CWE-74 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Access: Public Status: Proof-of-Concept Download: 🔒 Google Hack: 🔒 Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 03/27/2026 Advisory disclosed 03/27/2026 +0 days VulDB entry created 03/27/2026 +0 days VulDB entry last update Sourcesinfo Vendor: sourcecodester.com Advisory: gist.github.com Status: Not defined CVE: CVE-2026-4973 (🔒) GCVE (CVE): GCVE-0-2026-4973 GCVE (VulDB): GCVE-100-353860 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 03/27/2026 10:00 Changes: 03/27/2026 10:00 (55) Complete: 🔍 Submitter: Anas22335 Cache ID: 99:747:101 Submitinfo Accepted Submit #778101: SourceCodester Online Quiz System 1.0 Cross Site Scripting (by Anas22335) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸