HOMEVULNERABILITIESCVE-2021-28379
HIGHPOC

CVE-2021-28379

CWE-434Published: March 15, 2021· Updated: Jun 17, 2026

8.8
CVSS v3.1

Official Description

web/upload/UploadHandler.php in Vesta Control Panel (aka VestaCP) through 0.9.8-27 and myVesta through 0.9.8-26-39 allows uploads from a different origin.

NVD Source

Technical Analysis

CVE-2021-28379 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

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 8.8.

A proof-of-concept (PoC) exploit exists for CVE-2021-28379. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

myvestacp1 product(s)
myvesta
vestacp1 product(s)
vesta control panel
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
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

PATCHhttps://github.com/myvesta/vesta/commit/3402071e950e76b79fa8672a1e09b70d3860f355
PATCHhttps://github.com/myvesta/vesta/commit/3402071e950e76b79fa8672a1e09b70d3860f355
ADVISORYhttp://packetstormsecurity.com/files/161836/VestaCP-0.9.8-Cross-Site-Request-Forgery.html
ADVISORYhttp://packetstormsecurity.com/files/161836/VestaCP-0.9.8-Cross-Site-Request-Forgery.html

All References (4)

→
http://packetstormsecurity.com/files/161836/VestaCP-0.9.8-Cross-Site-Request-Forgery.htmlExploit · Third Party Advisory
→
https://github.com/myvesta/vesta/commit/3402071e950e76b79fa8672a1e09b70d3860f355Patch · Third Party Advisory
→
http://packetstormsecurity.com/files/161836/VestaCP-0.9.8-Cross-Site-Request-Forgery.htmlExploit · Third Party Advisory
→
https://github.com/myvesta/vesta/commit/3402071e950e76b79fa8672a1e09b70d3860f355Patch · Third Party Advisory

Quick Facts

CVE IDCVE-2021-28379
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-434
CISA KEVNo
ExploitPOC
Affected2 vendor(s)
PublishedMar 15, 2021

Related CVEs (CWE-434)

CVE-2024-49291
10.0
CVE-2024-49314
10.0
CVE-2024-49257
10.0
CVE-2024-49242
10.0
CVE-2024-49216
10.0
CVE-2024-49668
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-28379 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.COM. CVE data is provided under the NVD usage policy.
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