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🛡️ CVE-2023-0610 — wallabag

🟡 CVSS 4.3 — Medium ⚠️ Exploit Public CWE-285 NVD
4.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

wallabag subject to Improper Authorization via annotations

Impact

The annotations feature lets users add annotations on highlighted parts of an entry.

The controller does not validate authorization on PUT and DELETE requests which lets a logged user modify or delete any annotation using their ID on their endpoints example.org/annotations/{id}.

These vulnerable requests also disclose highlighted parts of the entry to the attacker.

You should immediately patch your instance to version 2.5.3 or higher if you have more than one user and/or having open registration.

Resolution

A user check is now done in the vulnerable methods before applying change on an annotation.

The Annotation retrieval through a ParamConverter has also been replaced with a call to the AnnotationRepository in order to prevent any information disclosure through response discrepancy.

Workarounds

Credits

We would like to thank @bAuh0lz for reporting this issue through huntr.dev.

Reference: https://huntr.dev/bounties/8fdd9b31-d89b-4bbe-9557-20b960faf926/

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity low, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: Low — an ordinary user account is enough.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: None.
  • Integrity impact: Low — limited, and the attacker does not choose what is affected.
  • Availability impact: None.

Weakness class

CVE-2023-0610 is classified as CWE-285: Improper Authorization. A request is carried out without confirming that the caller is permitted to perform it on that specific resource.

Affected software

CVE-2023-0610 is recorded against 2 packages.

  • wallabag (fixed in 2.5.3)
  • wallabag/wallabag (from 2.0.0-beta.1 up to 2.5.3)

Timeline and source

Published on 1 February 2023 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
huntr.dev
github.com
huntr.dev

Other advisories for this package

wallabag has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-285: Improper Authorization) in other software:

Details

Severity MEDIUM
CVSS Score 4.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CWE CWE-285
Public Exploit ⚠️ Yes
Source NVD
Published 2023-02-01
Updated 2026-08-20
Modified 2026-06-17

Affected Packages

Software From version Fixed in
wallabag — 2.5.3
wallabag/wallabag 2.0.0-beta.1 2.5.3

Similar Threats

Exploit Protection

Are you running wallabag?

CVE-2023-0610 carries CVSS 4.3 Medium rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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