CVE-2021-42669
A file upload vulnerability exists in Sourcecodester Engineers Online Portal in PHP via dashboard_teacher.php, which allows changing the avatar through teacher_avatar.php.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 23.3%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
A file upload vulnerability exists in Sourcecodester Engineers Online Portal in PHP via dashboard_teacher.php, which allows changing the avatar through teacher_avatar.php. Once an avatar gets uploaded it is getting uploaded to the /admin/uploads/ directory, and is accessible by all users. By uploading a php webshell containing "<?php system($_GET["cmd"]); ?>" the attacker can execute commands on the web server with - /admin/uploads/php-webshell?cmd=id.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 23.27% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-434
- Affected
- engineers online portal project/engineers online portal
- Source
- cve@mitre.org
EPSS 23.3% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/TheHackingRabbi/CVE-2021-42669Exploit, Third Party Advisory
- https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42671Exploit, Third Party Advisory
- https://www.sourcecodester.com/php/13115/engineers-online-portal-php.htmlProduct, Third Party Advisory
- https://github.com/TheHackingRabbi/CVE-2021-42669Exploit, Third Party Advisory
- https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42671Exploit, Third Party Advisory
- https://www.sourcecodester.com/php/13115/engineers-online-portal-php.htmlProduct, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.