CVE-2024-1685Network attack vector

Authenticated object injection via attachmentUrl deserialization

Published Mar 16, 2024 · Updated Apr 8, 2026

PHP object injection in Sygnoos Social Media Share Buttons 2.1.0 and earlier allows remote authenticated users to inject objects. The SgmbButton code passes attacker-controlled attachmentUrl data into PHP deserialization, which constructs an object from the supplied value. Subscriber-level access is required, and file deletion, sensitive-data retrieval, or code execution also requires a usable POP chain from another installed plugin or theme.

CVSS severity8.8
High
EPSS probability0.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

PHP object injection in Sygnoos Social Media Share Buttons 2.1.0 and earlier allows remote authenticated users to inject objects. The SgmbButton code passes attacker-controlled attachmentUrl data into PHP deserialization, which constructs an object from the supplied value. Subscriber-level access is required, and file deletion, sensitive-data retrieval, or code execution also requires a usable POP chain from another installed plugin or theme.

The record

CVE
CVE-2024-1685
Published
Mar 16, 2024
Updated
Apr 8, 2026
Vendor
Sygnoos
Product
Social Media Share Buttons
Classifications
CWE-502
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Sygnoos · Social Media Share Buttonsversion=0 <=2.1.0

Published CVSS scores

8.8WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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