CVE-2023-2470Public exploitNetwork attack vector

Administrator-level stored XSS via unescaped Feed URL

Published May 30, 2023 · Updated Jan 10, 2025

Stored XSS in David Merinas Add to Feedly 1.2.11 and earlier allows remote authenticated users to execute script via the Feed URL setting. The plugin stores the Feed URL setting without sanitizing or escaping it, so a crafted value executes when the settings form is saved. Administrator-level access is required, and injected script runs in the browser context despite unfiltered_html being disabled.

CVSS severity4.8
Medium
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in David Merinas Add to Feedly 1.2.11 and earlier allows remote authenticated users to execute script via the Feed URL setting. The plugin stores the Feed URL setting without sanitizing or escaping it, so a crafted value executes when the settings form is saved. Administrator-level access is required, and injected script runs in the browser context despite unfiltered_html being disabled.

The record

CVE
CVE-2023-2470
Published
May 30, 2023
Updated
Jan 10, 2025
Vendor
David Merinas
Product
Add to Feedly
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 30, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 10, 2025Record 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 <=1.2.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

David Merinas · Add to Feedlyversion=0 <=1.2.11

Published CVSS scores

4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

Public exploit references

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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