VulnerabilityPublished 9 Nov 2026

CVE-2026-124636: kevquirk PureBlog · Path Traversal

Affects kevquirk PureBlogSource CVE Database V5

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Not known to be exploited · CVSS 5.1 Medium · fixed in 3.7.3 : update kevquirk PureBlog when convenient.

Data as of 9 Nov 2026, 14:35 UTC

CVSS 4.0 base score

5.1Medium

How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none

CVSS scores by source
CNA (VulDB)	CVSS 4.0	5.1
CNA (VulDB)	CVSS 3.1	3.8
CNA (VulDB)	CVSS 3.0	3.8
CNA (VulDB)	CVSS 2.0	4.7

Patch: Available – fixed in 3.7.3

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: High
User Interaction: None
Vulnerable system confidentiality: None
Vulnerable system integrity: Low
Vulnerable system availability: Low
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: High: The attacker requires privileges that provide significant (e.g., administrative) control over the vulnerable system allowing full access to the vulnerable system’s settings and files.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system confidentiality: None: There is no loss of confidentiality within the Vulnerable System.
Vulnerable system integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact to the Vulnerable System.
Vulnerable system availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the Vulnerable System are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 9 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
kevquirkPureBlog	Affected =3.7.0 =3.7.1 =3.7.2	Fixed in–

CPE configurations (1)

cpe:2.3:a:kevquirk:pureblog:*:*:*:*:*:*:*:*

AI-suggested

Upgrade kevquirk PureBlog to version 3.7.3 or later. This version contains the official fix for the path traversal vulnerability. No additional mitigation steps are required as the vendor has released a timely patch.

Description

CVE-2026-124636 is a path traversal vulnerability in kevquirk PureBlog versions 3.7.0 through 3.7.2. The flaw exists in the save_page function within includes/lib/content.php of the Page Editor component. An attacker can manipulate the page slug argument to perform path traversal, potentially accessing unauthorized files. Remote exploitation is possible. The issue is fixed in version 3.7.3.

Impact

Successful exploitation of this vulnerability allows remote attackers to perform path traversal via the page slug parameter, potentially leading to unauthorized file access or disclosure. The CVSS 4.0 base score is 5.1 (medium severity), reflecting network attack vector, low attack complexity, and limited impact on confidentiality and integrity.

Summary

This vulnerability in kevquirk PureBlog affects the save_page function of the Page Editor component, specifically in the includes/lib/content.php file. By manipulating the page slug argument, an attacker can trigger a path traversal condition, allowing unauthorized file access. The vulnerability is present in versions 3.7.0, 3.7.1, and 3.7.2. The vendor responded promptly and released a patch in version 3.7.3 to address the issue. The patch is identified by commit 71f5b0de2ecb2bb2934048ed40e1155c107484e3. No known exploits are reported in the wild.

References

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