CVE-2020-13644Network attack vector

Subscriber-level script injection via unprotected JSON import

Published May 28, 2020 · Updated Aug 4, 2024

Stored cross-site scripting in PickPlugins Accordion before 2.2.9 allows remote authenticated users to inject JavaScript via JSON import. The accordions_ajax_import_json handler reads a caller-supplied remote JSON file, writes its unsanitized fields into a published accordion, and echoes decoded content without capability or nonce checks. Subscriber access is sufficient, but execution requires an administrator to view the imported accordion or follow a crafted import link, enabling session theft or an administrative account.

CVSS severity5.4
Medium
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

Stored cross-site scripting in PickPlugins Accordion before 2.2.9 allows remote authenticated users to inject JavaScript via JSON import. The accordions_ajax_import_json handler reads a caller-supplied remote JSON file, writes its unsanitized fields into a published accordion, and echoes decoded content without capability or nonce checks. Subscriber access is sufficient, but execution requires an administrator to view the imported accordion or follow a crafted import link, enabling session theft or an administrative account.

The record

CVE
CVE-2020-13644
Published
May 28, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 28, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.4MITRECVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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