CVE Tools

CVE-2020-10422

Public exploit available. Not confirmed exploited in the wild yet. No fix published yet.

Published Updated Sources: CVE.org, NVD

What to do

No fixed build or workaround is published yet. Limit exposure and watch for a patch.

Steps

Written by AI from the record
  1. Check whether you run PHPKB Standard Multi-Language 9 and whether administrators use the draft-management page.
  2. No fixed version has been published; ask the vendor for a supported update or mitigation for CVE-2020-10422.
  3. Until then, warn administrators not to open unexpected PHPKB links and restrict access to the PHPKB administration area to trusted staff and networks.

What it is

From the CVE record

The way URIs are handled in admin/header.php in Chadha PHPKB Standard Multi-Language 9 allows Reflected XSS (injecting arbitrary web script or HTML) in admin/manage-drafts.php by adding a question mark (?) followed by the payload.

In plain language

Written by AI from the record

PHPKB Standard Multi-Language 9 has a website-link flaw that can target an administrator; typical small businesses should address it promptly if they use this version.

Reflected XSS in PHPKB Standard Multi-Language 9 occurs when attacker-controlled URI content is reflected through admin/header.php into admin/manage-drafts.php.

If you're affected

  • Administrator account misuse
  • Draft content tampering
  • Admin-page data exposure

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS49th
Public exploit
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

2 sources with a proof of concept or module.

Exploit links, PoCs and Metasploit modules after sign-in
EPSS

0.6% chance of exploitation activity in the next 30 days, which ranks it in the 49th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

5 events over 2185 days, from the signal feeds we watch.

  1. Public exploit / PoCsource: other
  2. Record updated
  3. Publishedweakness classified, att&ck mapped

Affected products

And 1 more affected product. See all after sign-in

Technical detail

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Scored 4.8 by NVD.

How it is reached

  • Attack Vector NetworkExploitable remotely over the network without any special conditions
  • Attack Complexity LowNo special conditions — the attack can be reliably reproduced
  • Privileges Required HighRequires admin or elevated privileges
  • User Interaction RequiredA user must click a link, open a file, or perform some action

Scope

  • Scope ChangedThe exploit can affect other components (e.g. sandbox escape, host compromise from VM)

Impact if exploited

  • Confidentiality LowSome restricted information is disclosed, but limited in scope
  • Integrity LowData modification is possible but limited in scope or consequence
  • Availability NoneNo availability impact

Weaknesses

ATT&CK techniques

Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.

Sources

Watch the software you run.

My Stack ranks new CVEs for your products by real-world exploitation, so the next serious one reaches you without reading every advisory.

We'll flag the next CVE, public exploit or patch for Phpkb, not every advisory. This one: public exploit.