Security readout for executives and security teams
Plain-English summary
CVE-2021-29055 is a reported cross-site scripting flaw in Sourcecodester School File Management System 1.0. A user-controlled Firstname value in the Update Account form may be handled unsafely, allowing script execution in a victim browser. Business risk depends on whether this niche application is deployed and reachable.
Executive priority
Prioritize if this application is internet-facing or used by untrusted users. Otherwise, handle in the normal web application remediation queue while confirming whether the product is still deployed.
Technical view
The CVE describes XSS through the Firtstname parameter in student_profile.php's Update Account form. The supplied sources do not provide CVSS, CWE classification, confirmed patch details, or exploitation telemetry. Scope appears limited to School File Management System 1.0, based on the CVE description and references.
Likely exposure
Exposure is likely limited to organizations running Sourcecodester School File Management System 1.0, especially if student_profile.php is reachable by untrusted or low-privileged users.
Exploitation context
The bundle references a public Packet Storm advisory, but KEV is false and the supplied evidence does not show active exploitation. Treat this as a publicly disclosed XSS issue, not a confirmed in-the-wild campaign.
Researcher notes
Evidence is sparse: no CVSS, CWE, patch, or detailed affected CPE data is supplied. The title contains a spelling inconsistency, and the parameter is described as Firtstname. Validate against local code before drawing broad conclusions.
Mitigation direction
- Check the project or vendor page for fixed releases or guidance.
- Restrict access to the affected application until remediation is confirmed.
- Ensure the Firstname field is validated and safely encoded before display.
- Consider replacing the application if no maintained fix is available.
Validation and detection
- Inventory systems for School File Management System 1.0 deployments.
- Review student_profile.php handling of the Update Account Firstname parameter.
- Confirm output encoding is applied wherever the profile value is rendered.
- Check application logs for unusual profile update 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.
CVE-2021-29055 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://packetstormsecurity.com/files/161394/School-File-Management-System-1.0-Cross-Site-Scripting.htmlCVE reference · x_refsource_MISC
- https://www.sourcecodester.com/php/14155/school-file-management-system.htmlCVE reference · x_refsource_MISC
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.