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Fencer Intel
medium 5.0

CVE-2009-4535 json

Mongoose 2.8.0 and earlier allows remote attackers to obtain the source code for a web page by appending a / (slash) character to the URI.

published 16y ago modified 4mo ago also EUVD-2009-4501

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.7%
EPSS 6.7% chance of exploitation in 30 days, percentile 93%
public exploits
2
Exploit-DB

Summary

Mongoose 2.8.0 and earlier allows remote attackers to obtain the source code for a web page by appending a / (slash) character to the URI.

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Timeline

  1. First public exploit (EDB-9897)
  2. Published

Exploit prediction

6.68% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-12309 Mongoose Web Server 2.8 - Multiple Directory Traversals remote, 2010-04-20
  • EDB-9897 Mongoose Web Server 2.8 - Source Disclosure webapps, 2009-10-23
  • pocoftheday.blogspot.com http://pocoftheday.blogspot.com/2009/10/mongoose-web-server-v280-remote-source_22.html referenced PoC, tagged "exploit" by a source, unverified
  • freetexthost.com http://freetexthost.com/0lcsrgt3vw referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Intel 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.