# Inisev Plugins (Various Versions) - Missing Authorization on handle_installation function

CVE record · `CVE-2023-0958`

- **Identifiers:** `CVE-2023-0958`
- **State:** Confirmed
- **Severity:** CVSS 4.3 Medium
- **Critical:** No
- **CNA:** Wordfence
- **Weakness (CWE):** [CWE-862](https://cwe.mitre.org/data/definitions/862.html)
- **Tags:** [Broken access control](https://agentprime.io/advisories/tag/access-control.md)
- **Technologies:** [inisev Redirection](https://agentprime.io/advisories/technology/inisev-redirection.md) · [inisev Pop-up](https://agentprime.io/advisories/technology/inisev-pop-up.md) · [inisev BackupBliss – Backup & Migration with Free Cloud Storage](https://agentprime.io/advisories/technology/inisev-backupbliss-backup-migration-with-free-cloud-storage.md) · [inisev Duplicate Post](https://agentprime.io/advisories/technology/inisev-duplicate-post.md) · [cl272 Enhanced Text Widget](https://agentprime.io/advisories/technology/cl272-enhanced-text-widget.md) · [cl272 Ultimate Posts Widget](https://agentprime.io/advisories/technology/cl272-ultimate-posts-widget.md) · [migrate Clone](https://agentprime.io/advisories/technology/migrate-clone.md) · [inisev Social Media Share Buttons & Social Sharing Icons](https://agentprime.io/advisories/technology/inisev-social-media-share-buttons-social-sharing-icons.md) · [steve85b SSL Mixed Content Fix](https://agentprime.io/advisories/technology/steve85b-ssl-mixed-content-fix.md) · [inisev Social Share Icons & Social Share Buttons](https://agentprime.io/advisories/technology/inisev-social-share-icons-social-share-buttons.md) · [s-feeds RSS Redirect & Feedburner Alternative](https://agentprime.io/advisories/technology/s-feeds-rss-redirect-feedburner-alternative.md)
- **Published:** 28 Jul 2023
- **Updated:** 8 Apr 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Wordfence) at 28 Jul 2023, 04:37 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: inisev. Product: Redirection.
  - affected: `1.1.3 and earlier` (semver)
  - Other versions: unaffected
- Vendor: inisev. Product: Pop-up.
  - affected: `1.1.9 and earlier` (semver)
  - Other versions: unaffected
- Vendor: inisev. Product: BackupBliss – Backup & Migration with Free Cloud Storage.
  - affected: `1.2.7 and earlier` (semver)
  - Other versions: unaffected
- Vendor: inisev. Product: Duplicate Post.
  - affected: `1.3.9 and earlier` (semver)
  - Other versions: unaffected
- Vendor: cl272. Product: Enhanced Text Widget.
  - affected: `1.5.7 and earlier` (semver)
  - Other versions: unaffected
- Vendor: cl272. Product: Ultimate Posts Widget.
  - affected: `2.2.4 and earlier` (semver)
  - Other versions: unaffected
- Vendor: migrate. Product: Clone.
  - affected: `2.3.7 and earlier` (semver)
  - Other versions: unaffected
- Vendor: inisev. Product: Social Media Share Buttons & Social Sharing Icons.
  - affected: `2.8.1 and earlier` (semver)
  - Other versions: unaffected
- Vendor: steve85b. Product: SSL Mixed Content Fix.
  - affected: `3.2.3 and earlier` (semver)
  - Other versions: unaffected
- Vendor: inisev. Product: Social Share Icons & Social Share Buttons.
  - affected: `3.5.7 and earlier` (semver)
  - Other versions: unaffected
- Vendor: s-feeds. Product: RSS Redirect & Feedburner Alternative.
  - affected: `3.7 and earlier` (semver)
  - Other versions: unaffected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 4.3 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N`, from CNA (Wordfence)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0069, the 53rd percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 28 Jul 2023. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2023-0958](https://www.cve.org/CVERecord?id=CVE-2023-0958)
- [NVD: CVE-2023-0958](https://nvd.nist.gov/vuln/detail/CVE-2023-0958)

### References from the CNA

- <https://www.wordfence.com/threat-intel/vulnerabilities/id/cf7bdd0e-f3b3-4be5-8a30-2c6d9cb783a3?source=cve>
- <https://plugins.trac.wordpress.org/browser/feedburner-alternative-and-rss-redirect/tags/3.7/modules/banner/misc.php#L427>
- <https://plugins.trac.wordpress.org/browser/ultimate-social-media-icons/tags/2.8.0/banner/misc.php#L424>
- <https://plugins.trac.wordpress.org/browser/copy-delete-posts/tags/1.3.8/banner/misc.php#L426>
- <https://plugins.trac.wordpress.org/browser/wp-clone-by-wp-academy/tags/2.3.7/modules/banner/misc.php#L438>
- <https://plugins.trac.wordpress.org/browser/enhanced-text-widget/tags/1.5.6/banner/misc.php#L339>
- <https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.2.7/includes/banner/misc.php#L427>
- <https://plugins.trac.wordpress.org/browser/redirect-redirection/tags/1.1.3/includes/banner/misc.php#L427>
- <https://plugins.trac.wordpress.org/browser/ultimate-posts-widget/tags/2.2.4/banner/misc.php#L343>
- <https://plugins.trac.wordpress.org/browser/http-https-remover/tags/3.2.3/banner/misc.php#L427>
- <https://plugins.trac.wordpress.org/browser/pop-up-pop-up/tags/1.1.9/modules/banner/misc.php#L427>
- <https://plugins.trac.wordpress.org/changeset?old_path=%2Fcopy-delete-posts%2Ftags%2F1.3.8&old=2923021&new_path=%2Fcopy-delete-posts%2Ftags%2F1.3.9&new=2923021&sfp_email=&sfph_mail=>
- <https://plugins.trac.wordpress.org/browser/ultimate-social-media-icons/tags/2.8.2/banner/misc.php#L434>
- <https://plugins.trac.wordpress.org/browser/copy-delete-posts/tags/1.4.0/banner/misc.php#L434>
- <https://plugins.trac.wordpress.org/browser/wp-clone-by-wp-academy/tags/2.3.8/modules/banner/misc.php#L432>
- <https://plugins.trac.wordpress.org/browser/enhanced-text-widget/tags/1.5.7/banner/misc.php#L351>
- <https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.2.8/includes/banner/misc.php#L434>
- <https://plugins.trac.wordpress.org/browser/ultimate-posts-widget/tags/2.2.5/banner/misc.php#L351>
- <https://plugins.trac.wordpress.org/browser/pop-up-pop-up/tags/1.2.0/modules/banner/misc.php#L432>
- <https://plugins.trac.wordpress.org/browser/ultimate-social-media-plus/tags/3.5.7/banner/misc.php#L424>
- <https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2823769%40http-https-remover%2Ftags%2F3.2.3&new=2944114%40http-https-remover%2Ftags%2F3.2.4>
- <https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2823770%40feedburner-alternative-and-rss-redirect%2Ftags%2F3.7&new=2944116%40feedburner-alternative-and-rss-redirect%2Ftags%2F3.8#file115>
- <https://plugins.trac.wordpress.org/changeset/2944041/ultimate-social-media-plus/tags/3.5.8/banner/misc.php?old=2823720&old_path=ultimate-social-media-plus%2Ftags%2F3.5.7%2Fbanner%2Fmisc.php>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2023-0958>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2023-0958/>. Everything for agents: <https://agentprime.io/llms.txt>.