Inconsistent name for term access query (Less critical - Drupal
7 and Drupal 8)
Drupal provides a mechanism to alter database SELECT queries before
they are executed. Contributed and custom modules may use this
mechanism to restrict access to certain entities by implementing
hook_query_alter() or hook_query_TAG_alter() in order to add
additional conditions. Queries can be distinguished by means of
query tags. As the documentation on EntityFieldQuery::addTag()
suggests, access-tags on entity queries normally follow the form
ENTITY_TYPE_access (e.g. node_access). However, the taxonomy
module's access query tag predated this system and used term_access
as the query tag instead of taxonomy_term_access.
As a result, before this security release modules wishing to
restrict access to taxonomy terms may have implemented an
unsupported tag, or needed to look for both tags (term_access and
taxonomy_term_access) in order to be compatible with queries
generated both by Drupal core as well as those generated by
contributed modules like Entity Reference. Otherwise information
on taxonomy terms might have been disclosed to unprivileged users.
Incorrect cache context on password reset page (Less critical -
Drupal 8)
The user password reset form does not specify a proper cache
context, which can lead to cache poisoning and unwanted content on
the page.
Confirmation forms allow external URLs to be injected (Moderately
critical - Drupal 7)
Under certain circumstances, malicious users could construct a URL
to a confirmation form that would trick users into being redirected
to a 3rd party website after interacting with the form, thereby
exposing the users to potential social engineering attacks.
Denial of service via transliterate mechanism (Moderately critical
- Drupal 8)
A specially crafted URL can cause a denial of service via the
transliterate mechanism.