HOMEVULNERABILITIESCVE-2021-45835
CRITICAL

CVE-2021-45835

CWE-434Published: March 18, 2022· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

The Online Admission System 1.0 allows an unauthenticated attacker to upload or transfer files of dangerous types to the application through documents.php, which may be used to execute malicious code or lead to code execution.

NVD Source

Technical Analysis

CVE-2021-45835 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

online_admission_system_project1 product(s)
online admissions system
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/rskoolrash/Online-Admission-System
ADVISORYhttps://github.com/rskoolrash/Online-Admission-System/issues/2
ADVISORYhttps://www.exploit-db.com/exploits/50623
ADVISORYhttps://github.com/rskoolrash/Online-Admission-System
ADVISORYhttps://github.com/rskoolrash/Online-Admission-System/issues/2
ADVISORYhttps://www.exploit-db.com/exploits/50623

All References (6)

→
https://github.com/rskoolrash/Online-Admission-SystemThird Party Advisory
→
https://github.com/rskoolrash/Online-Admission-System/issues/2Issue Tracking · Third Party Advisory
→
https://www.exploit-db.com/exploits/50623Exploit · Third Party Advisory · VDB Entry
→
https://github.com/rskoolrash/Online-Admission-SystemThird Party Advisory
→
https://github.com/rskoolrash/Online-Admission-System/issues/2Issue Tracking · Third Party Advisory
→
https://www.exploit-db.com/exploits/50623Exploit · Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2021-45835
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-434
CISA KEVNo
Affected1 vendor(s)
PublishedMar 18, 2022

Related CVEs (CWE-434)

CVE-2025-69129
10.0
CVE-2020-35489
10.0
CVE-2024-43160
10.0
CVE-2024-34990
10.0
CVE-2026-40772
10.0
CVE-2022-40981
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-45835 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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