CVE-2023-3578Public exploitNetwork attack vector

Server-side request forgery via unchecked rssurl

Published Jul 10, 2023 · Updated Aug 2, 2024

Server-side request forgery in DedeCMS 5.7.109 allows remote attackers to make server-originated requests through rssurl. In co_do.php, GetRssLinks passes the attacker-controlled URL through OpenUrl, whose PrivateInit processing parses it and initiates the fetch. No authentication or user interaction is required; the request can reach resources accessible to the DedeCMS server, while further impact depends on those resources.

CVSS severity9.8
Critical
EPSS probability3.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in DedeCMS 5.7.109 allows remote attackers to make server-originated requests through rssurl. In co_do.php, GetRssLinks passes the attacker-controlled URL through OpenUrl, whose PrivateInit processing parses it and initiates the fetch. No authentication or user interaction is required; the request can reach resources accessible to the DedeCMS server, while further impact depends on those resources.

The record

CVE
CVE-2023-3578
Published
Jul 10, 2023
Updated
Aug 2, 2024
Vendor
Shanghai Zhuozhuo Network Technology Co., Ltd. (DesDev)
Product
DedeCMS
Classifications
CWE-918, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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?

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

  1. Affected versionversion=5.7.109

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Shanghai Zhuozhuo Network Technology Co., Ltd. (DesDev) · DedeCMSversion=5.7.109

Published CVSS scores

5.2VulDB CNAAV:A/AC:L/Au:S/C:P/I:P/A:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
5.5VulDB CNACVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

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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