Waraxe IT Security Portal
Login or Register
October 15, 2026
Menu
Home
Logout
Discussions
Forums
Members List
IRC chat
Tools
Base64 coder
MD5 hash
CRC32 checksum
ROT13 coder
SHA-1 hash
URL-decoder
Sql Char Encoder
Affiliates
y3dips ITsec
Md5 Cracker
User Manuals
AlbumNow
Content
Content
Sections
FAQ
Top
Info
Feedback
Recommend Us
Search
Journal
Your Account
User Info
Welcome, Anonymous
Nickname
Password
(Register)

Membership:
Latest: MichaelSnaRe
New Today: 0
New Yesterday: 0
Overall: 9144

People Online:
Visitors: 960
Members: 0
Total: 960
Full disclosure
[0day-rubbish] StreamSets Transformer 3.17.0 auth-mode none fallback and un-sandboxed ScalaDTransform execution to container root (8.1 primary)
[0day-rubbish] RCDevs WebADM 2.4.14 authenticated log viewer sid command injection to webadm uid 999 code execution (7.2)
[0day-rubbish] Maian Cart 3.8 addBanners unrestricted banner upload to PHP webshell and administrator command execution (7.2 primary, PR:H)
[0day-rubbish] IPConfigure Orchid VMS 26.3.0 authenticated DNF repository GPG-key property command injection to root (7.2)
[0day-rubbish] Circutor LineEds 24.11.14-r0 unauthenticated pwrstudio events.xml shellExecute command injection (9.8)
[0day-rubbish] Asustor ADM 3.5.9.RWM1 (AS602T) music.cgi act=live stored-filename command injection reaching system() (8.8 primary, PR:L)
[0day-rubbish] Advantech WebAccess Node 9.2.3 unauthenticated CrystalRpt.aspx file upload and path traversal to code execution in w3wp.exe (9.8)
SEC Consult Research 20261001 :: Arbitrary Email sender spoofing in Apple iCloud mail
SEC Consult SA-20260924-0 :: Multiple Vulnerabilities in Paessler PRTG Network Monitor #CVE-2026-4637 #CVE-2026-4638
[NotCVE-2026-0019] game-music-emu through 0.6.5 VGM Command Interpreter Missing Operand Length Check Allows Heap Out-of-Bounds Read
[NotCVE-2026-0018] game-music-emu (libgme) through 0.6.5 Unbounded GYM Command Loop Allows Heap Out-of-Bounds Read
[NotCVE-2026-0017] game-music-emu (libgme) 0.6.5 and Earlier AY Loader NULL Pointer Dereference Allows Denial of Service
[NotCVE-2026-0016] game-music-emu VGM Command Interpreter Unvalidated 0xE0 PCM Seek Offset Allows Out-of-Bounds Read and Denial of Service
APPLE-SA-09-28-2026-3 macOS Sequoia 15.8.1
APPLE-SA-09-28-2026-2 macOS Tahoe 26.7.1
Log in Register Forum FAQ Memberlist Search
IT Security and Insecurity Portal

www.waraxe.us Forum Index -> Cross-site scripting aka XSS -> Help to evade xss filter...
Post new topicReply to topic View previous topic :: View next topic
Help to evade xss filter...
PostPosted: Mon Feb 14, 2011 4:35 am Reply with quote
aritmos
Advanced user
Advanced user
Joined: Jul 21, 2008
Posts: 82
Location: Inside a salted MD5




I send this XSS:

"><script>alert('xss')</script><f

Browser you can see:

"><script>alert('xss')<%2Fscript><f

And source code generated:

<input name="query" value="&quot;&gt;&lt;script&gt;alert('xss')&lt;/script&gt;&lt;f" class="text text_query query" id="query" type="text">

how can i evade the filters?
View user's profile Send private message
PostPosted: Mon Feb 14, 2011 5:41 pm Reply with quote
Cyko
Moderator
Moderator
Joined: Jul 21, 2009
Posts: 375




Problems:

1. Double quotes are converted to entities.
2. The < and > characters are also converted to entities.

Theirfore (too my knowledge) you can't brake out of the value attribute (in that format) - which is whats needed to execute/parse any JavaScript (as the value attribute can't execute/parse JavaScript on its own).

If the attribute was an on* (onclick, onhover etc.) attribute their would'nt be any problems (as their'd be no need to use double quotes or < and > characters) - infact it would be a breeze.

On a side note to the site owner - I assume the site is using htmlspecialchars(), I'd recommend to set the second paremeter to ENT_QUOTES to allow not only double quotes but single too (as currently its just converting double) - always a good idea to further migitate the risk of XSS attacks.

More info:

http://www.w3schools.com/tags/att_input_value.asp

http://ha.ckers.org/xss.html
View user's profile Send private message
PostPosted: Tue Feb 15, 2011 8:55 am Reply with quote
aritmos
Advanced user
Advanced user
Joined: Jul 21, 2008
Posts: 82
Location: Inside a salted MD5




then...is it imposible to do a xss injection?
View user's profile Send private message
Help to evade xss filter...
www.waraxe.us Forum Index -> Cross-site scripting aka XSS
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
All times are GMT
Page 1 of 1

Post new topicReply to topic


Powered by phpBB © 2001-2008 phpBB Group



PCWizardHub - Helping you fix, build, and optimize your PC life
All logos and trademarks in this site are property of their respective owner. The comments and posts are property of their posters, all the rest (c) 2004-2024 Janek Vind "waraxe"
Page Generation: 0.026 Seconds