Answers.Body: <p>The error you're getting is from the IDS (Intrusion Detection System).  CiviCRM has a third-party IDS package that's bolted on, and it can certainly be overzealous.  Its purpose is to prevent people from, e.g., submitting spam URLs into public forms.</p>
  
  <p>However, assuming that you're logged in as an authenticated user and having this problem, the easiest solution is to grant yourself the "CiviCRM: skip IDS check" permission.  You haven't specified your CMS, so I can't tell you where your permissions are, but grant your role that permission and you should see the error disappear.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-05-20T11:29:15.677Z
Answers.Text: The detection system seems to be very strict: I just linked some text with a previously uploaded file from the same server. Don't know why this should be "harmful".
Answers.UserDisplayName: Philipp Michael
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2017-01-07T08:39:03.650Z
Answers.Text: This answer helped fix a problem for me too!
Answers.UserDisplayName: Andy Clark
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-11-01T16:18:00.193Z
Answers.Text: Jon, my CMS is drupal, i tried setting that permission but still having same problem
Answers.UserDisplayName: Hassan Farooq
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2019-03-01T03:21:45.223Z
Answers.Text: fyi - encountered this same error with Mosaico 1.1.  The Skip IDS permission fixed it.
Answers.UserDisplayName: Dave T
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-09-01T14:42:10.730Z
Answers.LastActivityDate: 2015-09-01T14:42:10.730Z
Answers.UserDisplayName: Jon G - Megaphone Tech
Body: <p>When I try to submit an HTML link in a custom field of the type Memo/Rich Text Editor, in some cases I get the error message:</p>
  
  <pre><code>There is a validation error with your HTML input. Your activity is a bit suspicious, hence aborting
  </code></pre>
  
  <p>The input is a hyperlink in the most simple form:</p>
  
  <pre><code>&lt;a href="https://www.example.com"&gt;Link text&lt;/a&gt;
  </code></pre>
  
  <p>What's especially strange is that there are more fields of the same type in the same form that accept exactly the same HTML syntax.</p>
  
  <p>I found no difference between using TinyMCE and CKEditor.</p>
  
  <p>CiviCRM version is 4.4.19.</p>
  
  <p>Any clues highly welcomed.</p>
  
Tags: <custom-fields><editor>
Title: Input in Memo/Rich Text Editor custom field results in error "There is a validation error with your HTML input"
ThreadText: # Input in Memo/Rich Text Editor custom field results in error "There is a validation error with your HTML input"
  
  (Asked by: username_0 on 2015-09-01)
  
  When I try to submit an HTML link in a custom field of the type Memo/Rich Text Editor, in some cases I get the error message:
  There is a validation error with your HTML input. Your activity is a bit suspicious, hence aborting
  
  The input is a hyperlink in the most simple form:
  Link text
  
  What's especially strange is that there are more fields of the same type in the same form that accept exactly the same HTML syntax.
  I found no difference between using TinyMCE and CKEditor.
  CiviCRM version is 4.4.19.
  Any clues highly welcomed.
  
  **Tags:** custom-fields, editor
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2015-09-01. Score: 4 | Accepted answer
  
  The error you're getting is from the IDS (Intrusion Detection System). CiviCRM has a third-party IDS package that's bolted on, and it can certainly be overzealous. Its purpose is to prevent people from, e.g., submitting spam URLs into public forms.
  
  However, assuming that you're logged in as an authenticated user and having this problem, the easiest solution is to grant yourself the "CiviCRM: skip IDS check" permission. You haven't specified your CMS, so I can't tell you where your permissions are, but grant your role that permission and you should see the error disappear.
  
  > **Comments:**
  > **username_2**: The detection system seems to be very strict: I just linked some text with a previously uploaded file from the same server. Don't know why this should be "harmful".  
  > **username_3**: This answer helped fix a problem for me too!  
  > **username_4**: Jon, my CMS is drupal, i tried setting that permission but still having same problem  
  > **username_5**: fyi - encountered this same error with Mosaico 1.1.  The Skip IDS permission fixed it.  
  
  ---
  
  