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IDProjectCategoryView StatusDate SubmittedLast Update
06655Bug reportsSurvey editingpublic2012-10-05 10:562012-10-16 10:35
ReporterDenisChenu Assigned Toc_schmitz  
PrioritynormalSeverityminor 
Status closedResolutionfixed 
Product Version2.00+ 
Summary06655: Unable to do integer comparaison in Expression manager for non super-admin user with XSSfiltering
Description

If you try to do some comparaison in a question with a not super-admin user, the < or > are filtered by htmlpurifier to & lt ; or & gt ;

Steps To Reproduce

Create a new user, not super admin (allow him to create survey)
Set XSSfilte to true in LS param
Connect with this new user
Add a survey
Add a group
Add a question with:

{if(1 < 2,"correct calculation","miscalculation")}

The question text is translated to

{if(1 & lt ; 2,"correct calculation","miscalculation")}

Additional Information

Already try with:
htmlpurifier Filter.ExtractStyleBlocks.Escaping to false, but it's a bad way.

I think non admin user need more control on question texmaybe.

Another possibility is to replace & lt ; and & gt ; in Expression Manager.

TagsNo tags attached.
Bug heat6
Complete LimeSurvey version number (& build)121005
I will donate to the project if issue is resolvedNo
Browsernot relevant
Database type & versionnot relevant
Server OS (if known)not relevant
Webserver software & version (if known)not relevant
PHP Versionnot relevant

Relationships

Relationship GraphDependency Graph
child of 06592 closedDenisChenu Import of question with equation converts special characters to HTML entitities 

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Activities

c_schmitz

c_schmitz

2012-10-09 22:53

administrator   ~21147

I don't think it is possible to solve this with reasonable effort - rather we place an according hint in the documentation.
TMSWhite

TMSWhite

2012-10-10 02:06

reporter   ~21151

All Expression Manager operators that might be affected by XSS filtering have alternate spellings to avoid this problem:

&& ... and
|| ... or

... gt
< ... lt
= ... ge
<= ... le
== ... eq
c_schmitz

c_schmitz

2012-10-10 10:33

administrator   ~21152

Horray!
DenisChenu

DenisChenu

2012-10-11 12:49

developer   ~21210

I think there are a problem with multi user installation.

Super-admin make a
{if(1 < 2,"My text","")}

Survey work like a charme.

Another user want to make some modification and put:
{if(1 < 2,"My new text","")}

Survey are breaked.
c_schmitz

c_schmitz

2012-10-16 10:35

administrator   ~21345

Superadmin always bypasses the XSS filter.
So if a normal XSSfiltere admin user edits the question again, it breaks the formula.

Issue History

Date Modified Username Field Change
2012-10-05 10:56 DenisChenu New Issue
2012-10-05 10:57 DenisChenu Relationship added child of 06592
2012-10-09 22:53 c_schmitz Note Added: 21147
2012-10-10 02:06 TMSWhite Note Added: 21151
2012-10-10 10:33 c_schmitz Note Added: 21152
2012-10-10 10:33 c_schmitz Status new => closed
2012-10-10 10:33 c_schmitz Assigned To => c_schmitz
2012-10-10 10:33 c_schmitz Resolution open => no change required
2012-10-11 12:49 DenisChenu Note Added: 21210
2012-10-11 12:49 DenisChenu Status closed => feedback
2012-10-11 12:49 DenisChenu Resolution no change required => reopened
2012-10-16 10:35 c_schmitz Note Added: 21345
2012-10-16 10:35 c_schmitz Status feedback => closed
2012-10-16 10:35 c_schmitz Resolution reopened => fixed
2019-11-01 17:25 c_schmitz Category Survey design => Survey editing