CVE-2026-2216VulnerabilityPublished 9 Feb 2026Updated 23 Feb 2026

CVE-2026-2216: rachelos WeRSS we-mp-rss · Path Traversal

Affects rachelos WeRSS we-mp-rssSource CVE Database V5

Not known to be exploited · CVSS 5.3 Medium.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 4.0 base score

5.3Medium

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

EPSS: 0.3% chance of exploitation in 30 days – higher than 27% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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 9 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 2026-10-25.

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.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC 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
rachelosWeRSS we-mp-rss	Affected =1.4.0 =1.4.1 =1.4.2 =1.4.3 =1.4.4 =1.4.5 =1.4.6 =1.4.7 =1.4.8	Fixed in–

AI-suggested

To mitigate CVE-2026-2216, organizations should first check for and apply any official patches or updates from the rachelos vendor once available. In the absence of patches, implement strict input validation and sanitization on the filename parameter in the download_export_file function to disallow directory traversal sequences such as '../'. Employ web application firewalls (WAFs) with custom rules to detect and block path traversal attempts targeting this endpoint. Restrict file system permissions to limit the accessible directories and files to the minimum necessary for the application’s operation, preventing unauthorized file access even if traversal is attempted. Conduct code reviews and security testing focusing on input validation for all file handling functions. Monitor logs for suspicious access patterns or attempts to exploit path traversal. Finally, consider isolating the WeRSS service in a segmented network zone to reduce exposure.

Description

A flaw has been found in rachelos WeRSS we-mp-rss up to 1.4.8. Impacted is the function download_export_file of the file apis/tools.py. Executing a manipulation of the argument filename can lead to path traversal. The attack can be launched remotely. The exploit has been published and may be used.

Impact

The primary impact of CVE-2026-2216 is unauthorized disclosure of sensitive information due to path traversal, which can expose configuration files, credentials, or other critical data stored on the server. This can lead to data breaches, loss of confidentiality, and potentially facilitate further attacks such as privilege escalation or lateral movement within a network. Organizations relying on WeRSS we-mp-rss for RSS feed management or related services may face operational risks if sensitive internal files are exposed. The vulnerability's remote exploitability and low complexity increase the likelihood of exploitation once a patch or mitigation is not applied. While availability and integrity are not directly impacted, the confidentiality breach alone can have severe regulatory and reputational consequences, especially for organizations in regulated industries or handling sensitive user data.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 23 Feb 2026, 21:10 UTC

Technical details

References

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