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Fencer Vulns
critical 9.3

CVE-2025-34121 json

Idera Up.Time ≤ 7.2 post2file.php Arbitrary File Upload RCE

published 2025-07-16 15 mo ago modified 2026-07-28 3 mo ago also EUVD-2025-21749

cvss
9.3
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.8%
EPSS 2.8% chance of exploitation in 30 days, percentile 86%
public exploits
1
Metasploit

Summary

An unauthenticated arbitrary file upload vulnerability exists in Idera Up.Time Monitoring Station versions up to and including 7.2. The `wizards/post2file.php` script accepts arbitrary POST parameters, allowing attackers to upload crafted PHP files to the webroot. Successful exploitation results in remote code execution as the web server user. NOTE: The bypass for this vulnerability is tracked as CVE-2015-9263.

Timeline

  1. First public exploit (Metasploit exploit/multi/http/uptime_file_upload_1)
  2. Published

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
15 mo ago

Exploit prediction

2.81% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit exploit/multi/http/uptime_file_upload_1 Idera Up.Time Monitoring Station 7.0 post2file.php Arbitrary File Upload metasploit exploit, excellent rank, 2013-11-19
  • raw.githubusercontent.com https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/multi/http/uptime_file_upload_1.rb referenced PoC, tagged "exploit" by a source, unverified
  • web.archive.org https://web.archive.org/web/20150210113937/http://www.security-assessment.com/files/documents/advisory/Up.Time%207.2%20-%20Arbitrary%20File%20Upload.pdf referenced PoC, tagged "exploit" by a source, unverified
  • exploit-db.com https://www.exploit-db.com/exploits/38732 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 9.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA 4.0 9.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • Idera Up.Time Monitoring Station

Classification

Weakness
  • CWE-434 Unrestricted Upload of File with Dangerous Type
  • CWE-306 Missing Authentication for Critical Functionality

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.