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CVE Record

CVE-2020-36729: Slideshow, Image Slider by 2J <= 1.3.31 - Authorization Bypass

The 2J-SlideShow Plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on the 'twoj_slideshow_setup' function called via the wp_ajax_twoj_slideshow_setup AJAX action in versions up to, and including, 1.3.31. This makes it possible for authenticated attackers (Subscriber, or above level access) to allow attackers to perform otherwise restricted actions and subsequently deactivate any plugins on the blog.

MediumCVSS 5.4Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

A logged-in WordPress user with even Subscriber-level access could abuse the 2J Slideshow plugin to perform admin-only behavior, including deactivating plugins. That can disrupt site functionality and weaken defenses if security plugins are disabled, but the source bundle does not show unauthenticated access or confirmed active exploitation.

Executive priority

Treat this as a moderate-priority WordPress hygiene issue. It is not cited as actively exploited, but it can let a low-privilege account disrupt a site or disable protective plugins. Prioritize internet-facing sites with user registration or many authenticated users.

Technical view

CVE-2020-36729 is a CWE-285 authorization bypass in 2J-SlideShow up to and including 1.3.31. The wp_ajax_twoj_slideshow_setup AJAX action calls twoj_slideshow_setup without an adequate capability check, allowing authenticated low-privilege users to perform restricted actions, including arbitrary plugin deactivation. CVSS v3.1 is 5.4.

Likely exposure

Exposure is limited to WordPress sites running Slideshow, Image Slider by 2J at vulnerable versions and allowing untrusted authenticated accounts. Public registration, customer portals, membership sites, or compromised low-privilege accounts raise practical risk.

Exploitation context

The source bundle indicates network exploitation with low complexity, low privileges, no user interaction, and no confidentiality impact. KEV is false, and no cited source in the bundle confirms active exploitation.

Researcher notes

The strongest technical signal is the missing capability check on the AJAX action. Sources identify authenticated Subscriber-or-above access and arbitrary plugin deactivation. Patch details are implied by the fixed-vulnerability references and WordPress Trac link, but the bundle does not provide a precise fixed version statement beyond vulnerable versions up to 1.3.31.

Mitigation direction

  • Inventory WordPress sites for Slideshow, Image Slider by 2J versions up to 1.3.31.
  • Upgrade beyond 1.3.31 only after confirming vendor guidance or changelog indicates the fix.
  • Remove or disable the plugin where it is not required.
  • Restrict untrusted authenticated accounts and review public registration settings.
  • Review whether security or availability-critical plugins were unexpectedly deactivated.

Validation and detection

  • Check each WordPress installation for the 2J Slideshow plugin and installed version.
  • Confirm the deployed version is not listed as up to and including 1.3.31.
  • Review admin activity and logs for unexpected plugin deactivation events.
  • Validate that low-privilege users cannot access restricted plugin setup behavior.
  • Document findings and remediation status per affected site.
Prepared
Confidence
high
Sources
6

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-285: Exact CWE lookup

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description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2020-36729 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.4 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.4CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L2.82.5Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

5.4Medium
CVSS 3.1 vector shape for CVE-2020-36729Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
2j-slideshowSlideshow, Image Slider by 2J0unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.