CVE-2023-1208Public exploitNetwork attack vector

Administrator code execution via arbitrary-path password-file write

Published Jul 10, 2023 · Updated Nov 8, 2024

Arbitrary file write in Dimitar Ivanov HTTP Headers before 1.18.11 allows remote authenticated users to execute server-side code. The http_headers_pre_update_option path accepts administrator-controlled password-file locations and writes WWW-Authenticate credentials there without constraining the destination. Administrator access is required, and writing PHP into a web-served path yields code execution with the WordPress server's privileges.

CVSS severity7.2
High
EPSS probability1.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file write in Dimitar Ivanov HTTP Headers before 1.18.11 allows remote authenticated users to execute server-side code. The http_headers_pre_update_option path accepts administrator-controlled password-file locations and writes WWW-Authenticate credentials there without constraining the destination. Administrator access is required, and writing PHP into a web-served path yields code execution with the WordPress server's privileges.

The record

CVE
CVE-2023-1208
Published
Jul 10, 2023
Updated
Nov 8, 2024
Vendor
Dimitar Ivanov
Product
HTTP Headers
Classifications
CWE-284, T1505.003
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jul 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 8, 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=0 <1.18.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Dimitar Ivanov · HTTP Headersversion=0 <1.18.11

Published CVSS scores

6.6WordfenceCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/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.

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-284Improper Access Control
T1505.003Server Software Component: Web Shell

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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