Security readout for executives and security teams
Plain-English summary
CVE-2026-1154 is a cross-site scripting issue in SourceCodester E-Learning System 1.0. A remote attacker could manipulate lesson Title or Description fields so malicious content runs when a user views it. The business risk is mainly user-session abuse, defacement, or misleading content inside the application, not direct server takeover based on the provided scoring.
Executive priority
Treat as a moderate-priority web application issue. Prioritize remediation if the platform is internet-facing, used by many students, or allows broad lesson editing. There is public exploit information, but no confirmed active exploitation in the provided sources.
Technical view
The flaw affects /admin/modules/lesson/index.php in the Lesson Module Handler. Inputs named Title and Description are reportedly not safely handled, enabling basic XSS. CVSS 4.0 is 5.3 with network attack vector, low complexity, no privileges required, and user interaction required. CWE mappings include CWE-74 and CWE-80.
Likely exposure
Organizations running SourceCodester E-Learning System version 1.0 are potentially exposed, especially if the lesson module is reachable by untrusted users. The provided sources do not identify other affected versions, hosted deployments, or a vendor patch.
Exploitation context
The source bundle states an exploit has been published and may be used. CISA KEV status is false in the provided data, and no cited source confirms active exploitation. Successful impact appears to require a victim viewing affected lesson content.
Researcher notes
Evidence is limited to CVE/VulDB records and a public exploit reference. The description calls it basic XSS, while the submission title references stored HTML injection. No official patch, affected code diff, or vendor advisory is included in the provided sources.
Mitigation direction
- Check SourceCodester and VulDB guidance for any vendor update or workaround.
- Restrict lesson-management access to trusted administrators until fixed.
- Review and sanitize Title and Description input and output handling.
- Use application-layer filtering to block unsafe HTML or script content.
- Back up the application before applying code or configuration changes.
Validation and detection
- Confirm whether SourceCodester E-Learning System 1.0 is deployed.
- Identify exposure of /admin/modules/lesson/index.php and the lesson module.
- Review recent lesson Title and Description entries for suspicious HTML or script content.
- Test in a safe staging environment for improper rendering of submitted content.
- Check web logs for unusual lesson creation or modification activity.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-74: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-80: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-1154 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.3 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
5.3MediumVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Source materials
- CVE List V5 sourceCVE List V5
- VDB-341747 | SourceCodester E-Learning System Lesson index.php cross site scriptingCVE reference · vdb-entry, technical-description
- VDB-341747 | CTI Indicators (IOB, IOC, TTP, IOA)CVE reference · signature, permissions-required
- Submit #735855 | SourceCodester E-Learning System (CAIWL) 1.0 Stored HTML Injection VulnerabilityCVE reference · third-party-advisory
- https://gist.github.com/0xCaptainFahim/dada955760b424a851de12bccadee997CVE reference · exploit
- https://www.sourcecodester.com/CVE reference · product
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.