VulnerabilityPublished 20 Sep 2026Updated 22 Sep 2026

CVE-2026-93957: olivier-ls PHP-FTS · Incorrect Comparison

Affects olivier-ls PHP-FTSSource CVE Database V5

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Public exploit available · CVSS 5.3 Medium · fixed in 1.1.4 : patch olivier-ls PHP-FTS as a priority.

Data as of 3 Nov 2026, 10:58 UTC

CVSS 4.0 base score

5.3Medium

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

EPSS: 0.4% chance of exploitation in 30 days – higher than 42% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 1.1.4

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

Base metrics

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

Threat metrics

Exploit Maturity: POC

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: Low: The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the Vulnerable System.
Vulnerable system integrity: None: There is no loss of integrity within the Vulnerable System.
Vulnerable system availability: None: There is no impact to availability within 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.
Exploit Maturity: POC: Based on threat intelligence sources each of the following must apply: · Proof-of-concept is publicly available · No knowledge of reported attempts to exploit this vulnerability · No knowledge of publicly available solutions used to simplify attempts to exploit the vulnerability

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 20 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
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), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 3 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
olivier-lsPHP-FTS	Affected 1.1.0 – 1.1.3 4 affected builds	Fixed in–
GitHubolivier-ls/php-fts`pkg:github/olivier-ls/php-fts`Other threats	Affected 1.1.0 – 1.1.3 4 affected builds	Fixed in–

CPE configurations (1)

cpe:2.3:a:olivier-ls:php-fts:*:*:*:*:*:*:*:*

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AI-suggested

Upgrade olivier-ls PHP-FTS to version 1.1.4, which contains the official fix for this vulnerability. The vendor has released this fixed version promptly after disclosure. No other mitigation actions are indicated.

Description

A vulnerability has been found in olivier-ls PHP-FTS up to 1.1.3. This affects the function SearchEngine::matchesSingleFilter of the file src/SearchEngine.php of the component Filter Matching. The manipulation leads to incorrect comparison. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used. Upgrading to version 1.1.4 is able to mitigate this issue. The identifier of the patch is 0b2fae333d6b022da7ed4c43e2d41aa03f91dff3. It is suggested to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Impact

The vulnerability allows remote attackers to exploit an incorrect comparison in the filtering logic of PHP-FTS, potentially leading to unintended behavior or bypass of filtering controls. The exact impact details beyond the incorrect comparison are not specified. The CVSS score of 5.3 reflects a medium impact level.

Summary

This vulnerability affects the Filter Matching component of olivier-ls PHP-FTS up to version 1.1.3. The flaw is due to an incorrect comparison in the SearchEngine::matchesSingleFilter function, potentially allowing remote attackers to exploit the issue. The vendor responded promptly and released version 1.1.4 to address the problem. The patch identifier is 0b2fae333d6b022da7ed4c43e2d41aa03f91dff3. The CVSS 4.0 base score is 5.3, indicating medium severity, with network attack vector, low complexity, no privileges required, and no user interaction needed.

References

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