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WordPress plugin

Option Tree <= 2.7.2 — Object Injection Bypass

CVE-2019-15320Published · Updated

Action summary

Affected: ≤2.7.2Update to 2.7.3 or newer

All remediation steps
Watch plugin
Severity
High8.1
CVSS
8.1
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
What does this vector mean?
AV:N Attack vector
Network
AC:H Attack complexity
High
PR:N Privileges required
None
UI:N User interaction
None
S:U Scope
Unchanged
C:H Confidentiality
High
I:H Integrity
High
A:H Availability
High
Weakness
CWE-502 PHP Object Injection
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

OptionTree option-tree

  1. Affected≤ 2.7.2
  2. Patched in2.7.3

Update to 2.7.3 or newer.

You are affected if you run ≤ 2.7.2. Version 2.7.3 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under OptionTree.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. Update to version 2.7.3, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch OptionTree to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence.

The option-tree plugin before 2.7.3 for WordPress has Object Injection because the + character is mishandled.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in OptionTree

All 6
More vulnerabilities in OptionTree
SeverityVulnerabilityCVEPublished
Medium6.6Authenticated (Editor+) PHP Object Injection
≤2.7.3No patch available
CVE-2026-66620
Medium6.1Cross-Site Scripting
≤2.5.5Update to 2.6
CVE-2016-10895
High8.1Object Injection Bypass
≤2.7.2Update to 2.7.3
CVE-2019-15321
High8.1PHP Object Injection
≤2.6.0Update to 2.7.0
CVE-2019-15319
Medium6.1Cross-Site Scripting
≤2.5.3Update to 2.5.4
CVE-2015-9320

Same weakness (PHP Object Injection)

All PHP Object Injection
Other PHP Object Injection vulnerabilities
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup≤5.25.25Update to 5.26.45
CVE-2026-120688
Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder≤1.0.2Update to 1.1
CVE-2026-125055
Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System≤3.3.9Update to 3.4.0
CVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity high, CVSS 8.1

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
CVE® identifiers
Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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