CVE-2026-35404 | openedx openedx-platform 302 Form Submission HttpResponseRedirect redirect

VDB-355683 · CVE-2026-35404 · GCVE-0-2026-35404 OPENEDX OPENEDX-PLATFORM 302 FORM SUBMISSION HTTPRESPONSEREDIRECT REDIRECT HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.4 $0-$5k 0.69+ Summaryinfo A vulnerability classified as problematic has been found in openedx openedx-platform 302. This impacts the function HttpResponseRedirect of the component Form Submission Handler. Performing a manipulation results in redirect. This vulnerability was named CVE-2026-35404. The attack may be initiated remotely. There is no available exploit. To fix this issue, it is recommended to deploy a patch. Detailsinfo A vulnerability, which was classified as problematic, was found in openedx openedx-platform 302. This affects the function HttpResponseRedirect of the component Form Submission Handler. The manipulation with an unknown input leads to a redirect vulnerability. CWE is classifying the issue as CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. This is going to have an impact on integrity. The summary by CVE is: Open edX Platform enables the authoring and delivery of online learning at any scale. he view_survey endpoint accepts a redirect_url GET parameter that is passed directly to HttpResponseRedirect() without any URL validation. When a non-existent survey name is provided, the server issues an immediate HTTP 302 redirect to the attacker-controlled URL. Additionally, the same unvalidated URL is embedded in a hidden form field and returned in a JSON response after form submission, where client-side JavaScript performs location.href = url. This enables phishing and credential theft attacks against authenticated Open edX users. This vulnerability is fixed with commit 76462f1e5fa9b37d2621ad7ad19514b403908970. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-35404 since 04/02/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1204.001 according to MITRE ATT&CK. Applying the patch 76462f1e5fa9b37d2621ad7ad19514b403908970 is able to eliminate this problem. Productinfo Vendor openedx Name openedx-platform Version 302 Website Product: https://github.com/openedx/openedx-platform/ CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 4.5 VulDB Meta Temp Score: 4.4 VulDB Base Score: 4.3 VulDB Temp Score: 4.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 4.7 CNA Vector (GitHub_M): 🔒 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: Redirect CWE: CWE-601 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined 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: Patch Status: 🔍 0-Day Time: 🔒 Patch: 76462f1e5fa9b37d2621ad7ad19514b403908970 Timelineinfo 04/02/2026 CVE reserved 04/06/2026 +4 days Advisory disclosed 04/06/2026 +0 days VulDB entry created 04/06/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: github.com Status: Confirmed CVE: CVE-2026-35404 (🔒) GCVE (CVE): GCVE-0-2026-35404 GCVE (VulDB): GCVE-100-355683 Entryinfo Created: 04/06/2026 23:56 Changes: 04/06/2026 23:56 (65) Complete: 🔍 Cache ID: 99:3DF:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸