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Critical

Unauthenticated PHP Object Injection in OttoKit <= 1.1.27

IdentifiersCVE-2026-49781CWE-502· Deserialization of Untrusted Data

CVE-2026-49781 is an unauthenticated PHP Object Injection vulnerability affecting the OttoKit WordPress plugin in versions 1.1.27 and earlier. The available source material identifies the issue as PHP object injection and classifies it as CWE-502, Deserialization of Untrusted Data. Based on the provided information, the flaw can be reached remotely over the network without authentication or user interaction. No vulnerable function, parameter, or code path is specified in the provided content.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation could allow a remote unauthenticated attacker to inject crafted serialized PHP objects into the application. In PHP object injection cases, impact depends on the presence of usable gadget chains in the plugin, WordPress, or other installed components, but can include arbitrary code execution, unauthorized data access, data modification, and service disruption. The provided CVSS v3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) indicates high impact to confidentiality, integrity, and availability.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, reduce exposure by disabling the OttoKit plugin until an update can be applied, restricting access to any plugin endpoints that process untrusted input, and deploying compensating controls such as WAF rules or reverse-proxy filtering where feasible. Because PHP object injection often depends on reachable deserialization paths and gadget chains, minimizing plugin exposure and removing unnecessary plugins/themes may reduce exploitability, but no specific vendor-provided mitigation is available in the supplied content.

Remediation

Patch, then assume compromise.

Upgrade OttoKit to a version newer than 1.1.27 once a vendor fix is available. If a patched release has already been published, update immediately to the vendor-fixed version. Review vendor or Patchstack advisory material for the exact fixed version and any additional hardening guidance.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

ACTIVITY FEED

Recent activity

7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

7 SOURCESView more in app
What this page doesn’t show

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This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
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Exposure mapping

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Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity6

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2026-49781
NVD
nvd.nist.gov/vuln/detail/CVE-2026-49781
MITRE CWE · CWE-502
Deserialization of Untrusted Data
patchstack.com
patchstack.com/database/wordpress/plugin/suretriggers/vulnerability/wordpress-ottokit-plugin-1-1-27-php-object-injection-vulnerability?_s_id=cve